####################################
Changes in version 0.85, 7/2/2007:

Minor enhancements: 
1. Changed the algorithm used for sending conference signature, it is now 
   sent when more than one external connection is active rather than just 
   when the system is configured to allow multiple connections. 

Bug fixes:
1. Corrected C99 C declaration mixed with code in tbdcmd.c that's not accepted
   by pre C89 compilers.  This is the first time I've run into code gcc 4.x
   liked that other compilers don't, it's usually the other way around.
   
2. Corrected hooks for tbdQt in thebridge.c

3. Corrected a bug in the configuration file parser which caused thebridge 
   to exit immediately without explanation when the configuration file
   contained a StartupCmd.  Thanks to VK3JED for discovering this bug and
   helping debug it.

####################################
Changes in version 0.84, 6/29/2007:

New features:
1. Added a .lookup command contributed by Scott KI4LKF.  The lookup command 
   displays the specified user's node#, QTH, and busy status.
   
2. Added a .set command which allows configuration file variables to be 
   displayed and set interactively.  Note: most, but not all, configuration 
   variables can be set by the set command.  The variables that are not 
   supported (such as runas) require the thebridge to be restarted.
   
3. Added -r argument to the connect command.  The -r argument selects the 
   RTP protocol rather than the default EchoLink protocol.

4. Added an "last" option to the disconnect command.  Disconnects the last 
   station connected.

5. Added a separate interface for the EchoLink text mode via tbdchat 
   (tbdcmd alias).  Previously the .chat mode command and tbdcmd was used for 
   this purpose, but conflicts between interactive use and automatic use by 
   scripts proved to be unworkable.  See the configuration file variable 
   ChatPort.
   
Minor enhancements: 
1. Added hooks for tbdQt by Scott KI4LKF, see the http://CQInet.sf.net for the
   tbdQt package.
   
2. Modified GenSDES to only send the conference signature when thebridge is
   configured as a conference server.  When thebridge is used by the EchoIRLP 
   project conferencing might not be enabled.
   
3. Renamed the "quit" command to "quickexit" to prevent accidents.  Many people
   have tried to exit the tbdcmd program with unexpected (and undesired!) 
   results.

4. The node's Qth may now be optionally included in the hosts file by setting
   the QthInHostsFile configuration variable.  NB: As of today the inclusion
   of Qth information breaks the EchoIRLP scripts.

Bug fixes:
1. Fixed the ages old "Unable to enable core dumps" error/warning issued by
   tbdcmd which occurred on recent versions of the Linux kernel.  (This bug
   was fixed in tbd version 0.83, but the same bug in tbdcmd was missed.)
   
2. Modified GetPacketType to allow duplicate commands to be entered via local
   chat or command ports.  
   
3. Banned stations are now sent "bye" packets when they attempt to connect, 
   previously banned stations were just ignored. This caused problems when
   a conference was banned because thebridge is designed to continue to attempt 
   to connect forever unless stopped manually.  Sending a "bye" packet stops
   the connection attempt (and prevent log files from filling with 
   "Ignoring unauthorized user" messages).

####################################
Changes in version 0.83, 8/5/2006:

Bug fixes:
1. Applied patch supplied by Satoshi Yasuda(7m3tjz/ad6gz) to correct logfile
   filename generation for the daily log option.  Thanks Satoshi!
   
2. Increased MAX_SNAPSHOT_LEN to 16.  On *some* platforms the 10-digit
   snapshot ID was being truncated to 9 digits.  Apparently this was caused
   by snprintf run time library differences.  Thanks to Jonathan K1RFD for 
   noticing the problem and finding the solution.

3. Corrected compile problems with GCC 4.x.x (found on Fedora core 4 and 
   later).  Considering the number of compiler's that don't choke on the code
   I think this is a compiler bug, but restructuring the code to avoid the
   error was trivial.
   
4. Fixed the ages old "Unable to enable core dumps" error/warning which occurred
   on recent versions of the Linux kernel.

####################################
Changes in version 0.82, 2/11/2005: (limited beta release)

Minor enhancements: 
1. Added ShowIP command to dump user list with IP addresses.  Format:
   <callsign> <tab> <IP address> <tab> <'S' | 'R' | 'E'><eol>
   List is terminate by a blank line.  The final character indicates the
   users protocol, SpeakFreely, RTP, or EchoLink.  The callsign field will
   also contain the user's IP address if the protocol does not provide a
   callsign.

####################################
Changes in version 0.81, 1/8/2005:

New features:
1. Tbdcmd can now display a timestamp before each line of chat text
   enabled by the new '-t' command line switch.

Minor enhancements: 
1. Give priority to repeater attribute over conference attribute
   in autolurking code.

Bug fixes:
1. Fix rounding errors in AVRS frequency conversion in so 444.300
   doesn't become 444.299.

2. Fix typo and add "warning" to error message about failure to
   enable core (not "code") dumps.  Apparently Fedora has changed
   something as this always fails with "Invalid argument".
   
3. Corrected bug in tbdcmd which caused it to exit immediately when
   run without a console.
   
4. Modified new tbdcmd misfeature that suppressed "error" codes of 
   zero to only suppress them when tbdcmd is run interactively.
   
5. Corrected bug caused by uninitialized select timeout structure in
   tbdcmd.  This bug only occurred on a few systems, thanks to ke4tte
   for providing access to one where it did so I could debug it.
   
####################################
Changes in version 0.80, 11/28/2004:

New features:
1. Added text messaging support to the command interface. The new ".chat" 
   command is used to enable and disable chat mode for compatibility with
   existing scripts.

2. Added support for reporting the repeater or link location, frequency, 
   power and other parameters to EchoLink's server.  (Only useful for nodes 
   with associated RF equipment)

Minor enhancements: 
1. Modified EchoIRLP detection to prevent triggering by usage of nonstandard 
   ports for Speak Freely.

Bug fixes:
1. Add a timeout to tbdcmd so it won't hang indefinitely if used when tbd
   isn't running.  If thebridge does not send a response to a command within
   10 seconds an error code of TBD_ERR_TIMEOUT is returned to the script.

####################################
Changes in version 0.78+, 9/11/2004: (limited Beta release)

New features:
1. Added .refresh command to force thebridge to refresh the in memory (and
   on disk if enabled) station list.

Minor enhancements: 
1. Added a "status" option to the .busy command to indicate a busy status
   to the directory servers, but continue to accept connections.

Bug fixes:
1. Don't dump connections to Speak Freely clients on connections we started.
   This prevents problems staying connected to reflectors with misconfigured
   clients speaking the wrong compression format.

####################################
Changes in version 0.78, 9/2/2004: (limited Beta release)

Minor enhancements: 
1. Enable conference call checking for all configurations.  (The EchoLink 
   servers no longer allow logins from thebridge with a "bare" callsign,
   the callsign must be a repeater, link or conference name).

2. Added patch from KF7FLY to improve the ability of EchoIRLP to track refused
   outbound connections.

3. Added IncludeAllHosts configuration file variable to force inactive hosts
   to be included in the hosts file. Use this feature carefully, the IP 
   address of hosts that are not currently logged in may be inaccurate 
   especially for users with dialup connections.

4. Changed the name of the sample configuration file included with the release
   from tbd.conf to tbd.conf.sample to prevent accidently over writes of actual
   configuration file when thebridge is updated.  Thanks to Diane Bruce, VA3DB.

Bug fixes:
1. Removed code that attempted to deal with an IP address changes for 
   logged in clients.  The code had bugs and was just about impossible to
   test.  If your ISP randomly forces you to change your IP address it's
   time to find a new ISP!  This code caused thebridge to crash if a logged
   in user's IP address did change.  

####################################
Changes in version 0.77, 5/29/2004:
1. Cosmetic only ... rebuild from source files committed to CVS today.

####################################
Changes in version 0.76, 5/13/2004 (limited Beta release)

Bug fix:
1. Corrected additional memory leaks.

####################################
Changes in version 0.75, 2/26/2004 (limited Beta release):

Minor enhancements: 
1. Added code to update the IP address of persistent clients when the client's
   IP address changes in the directory.

Bug fixes:
1. Corrected memory leak created when compressed directory support was added.

####################################
Changes in version 0.74, 12/5/2003 (limited release EchoIRLP version):

Minor enhancements: 
1. Added requirement that callsign be either <callsign>-R, <callsign>-L, or
   a conference style callsign when tbd is used with the EchoIRLP project.
   
2. Changed version string sent to EchoLink directory servers from v.vvB to
   v.vvI when tbd is used with the EchoIRLP project.

Bug fixes:
1. Corrected an infinite loop that occurred when a "play4 -u ..." command was
   issued when a file was already playing for the specified user.
   
####################################
Changes in version 0.73, 10/28/2003 (limited Beta release):

Minor enhancements: 
1. Added a -p option to the .mute and .unmute commands to allow a station to be
   muted or unmuted more persistently.  Normally when a station is explicitly 
   muted or unmuted the action applies current connection only.  If the station
   disconnects and then reconnects he will return to the default mute state for
   his station class.  The -p option causes the stations mute state to persist
   across connections and disconnections as long as the station's callsign 
   remains in the directory cache.  This feature may be useful in certain 
   unusual circumstances when the a station class is muted, but there are
   certain exceptions.

2. Eliminated unused and unneeded fields from the UserInfo structure to reduce
   memory requirements.  
   
3. Modified configuration file parser to accept both DOS and *nix end of line
   conventions (*nix version only, Windoze version has always accepted both).

Bug fixes:
1. Added zlib subdirectory to include path so thebridge can be built on systems
   that don't already have the zlib headers in /usr/include.

2. Corrected a bug that caused the command ".mute -u" to mute conferences as
   well as PC users.

3. Removed the code added in 0.70 that prevented the conference from 
   connecting to itself.  This feature caused problems for the EchoIRLP project.
   
4. Corrected bug which caused the play4 pseudo user to timeout when the 
   BlabOffTimer was enabled.
   
####################################
Changes in version 0.72, Sept 9, 2003:

Minor enhancements: 
1. Changed the automute and autolurk logic to accomodate new EchoLink clients
   which can be repeaters or links *as well* as conferences.  The conference
   attribute is now the highest priority.  If conferences are muted, but not
   links and a user is both a conference and a link he will now be muted.
   
2. Added a "-e" flag to the .mute and .unmute flags to allow EchoLink 
   conferences to be treated separately from tbd conferences.  The original
   -c flag now effects tbd conferences only.

Bug fixes:
1. Corrected infinite loop that occurred on some platforms when the command
   ".mute -?" (or any other undefined flag) was entered.

2. Corrected a crash that occurred when an user attempted to connect to a
   conference when it was busy or at the configured maximum number of users.

####################################
Changes in version 0.71, Sept 7, 2003:

Bug fixes:
1. Corrected automatic muting of new stations that connect when the 
   .mute -c, -r or -u flags are in effect.
   
####################################
Changes in version 0.70, Sept 6, 2003:

New features:
1. Added the ability to execute a user provided script or program when 
   "interesting things" happen.
   
2. A new utility, tbdcmd, provides the ability for a user to issue commands
   to thebridge locally.  The tbdcmd may be used interactively or via scripts.
   
3. Added the "StartupCmd" configuration file variable to allow commands to 
   be executed automatically at startup.

4. Added a ".play4" command that allows a recorded file to be played everyone
   or a specified user.

Minor enhancements: 
1. Added the configuration variable EmailAdr to provide contact information to 
   the EchoLink support team.
   
2. Added ".busy" command to put the conference into a busy state.

3. Modified snprintf usage to handle more flavors correctly. (The C99 standard
   defined the behaviour differently than earlier implementations.)

4. Added a ".message" command to allow scripts to send text messages to
   conference users.
   
5. Added an option to disconnect all users to the ".disconnect" command.

6. Added a new configuration variable HelpFile that may be used to replace
   the builtin help text with a customized version.  This feature may be
   used to replace the english help text with another language.  It may also
   be used to to document functionality added by external scripts.
   
7. Added a new configuration variable SF_ReplyPort that may be used to 
   configure thebridge to talk to a Speak Freely or RTP client on the same 
   host.

9. Added the ability to .connect to a node by node number.  Previously
   numeric arguments were assumed to be IP addresses (yes 9999 is a valid,
   if unusual IP address).  Now numeric arguments that do not contain dots 
   are assumed to be node IDs.

8. Added the ability to use thebridge's built in logging under *nix as well as 
   Windows.  This may be useful when it is not possible or desirable to start 
   thebridge as root to allow it to open the syslog.

10. Added support for compressed and differential stations list downloads.

11. Added new configuration variable WelcomeDelay to specify a delay between
    when the user connects and when the welcome file starts playing.  This
    provides time for EchoLink client to complete its connection announcement
    before the welcome file starts.  Thanks to W7NTF for suggesting this
    feature.
    
12. Added -r, -c, -u, -s, -t, and -a options to the .mute and .unmute commands 
    to mute and unmute groups of stations with one command.  This option may 
    be useful to enforce order on large nets.
    
    Note: New stations connecting to the conference will be muted 
    automatically when a group mute for their station type is in effect.
    
13. Added the conference name to responses to commands issued with the .quote
    command so that responses from multiple conferences can be differentiated.
    
14. Added code to automatically disconnect stations that send too many 
    duplicate text messages. Duplicate text messages can be generated 
    when a number of conferences are connected together such that they 
    form a closed loop. The automatic disconnect logic is intended as a 
    safety measure to ensure that all available bandwidth is not consumed 
    by a text message feedback loop.
    
15. Modified the SDES generation to include the callsign of the station 
    talking in the name field.
    
Bug fixes:
1. Corrected a bug that caused Bind2IP to fail randomly on FreeBSD.

2. Corrected a bug that prevented thebridge from operating properly on NT 4.0.
   Thanks to K1RFD for the fix and N4LED for reporting the bug and testing
   the fix.
   
3. Corrected the way the group membership was changed when thebridge changed
   identities from root to the RunAsUser user.  Previously on thebridge would
   not become a member of secondary groups it belonged to, only the primary
   group listed in the password file.

4. Corrected a bug which caused the bulletin list order to change when
   thebridge was restarted.  Thanks to KB5MU for reporting this 'feature'.

5. Modified code to prevent a directory server logout on exit when logins 
   are disabled.

6. Modified code to pass local users SSRC on unmodified.  Previously local
   user's SSRC was changed to the SSRC of the conference for audio loop
   detection.

7. Modified RTCP handler to fully process all packets received.  Previously
   the user's callsign and name was extracted when the user first connected
   and never looked at again.  This prevented the dynamic information generated
   by the new EchoLink client from being displayed from the name field.
   
8. Corrected a number of portability problems which prevented thebridge from 
   compiling or running on the Alpha platform.  Thanks to WB3FFV for making 
   his Alpha box available for debugging.

9. Revised the code that attempted to break text messaging conference loops.
   The previous loop detection code was only effective for simple loops where
   each conference was in the loop, but not when leaf conferences were present.
   Additionally messages generated by users when they disconnected (such as 
   inactivity timeouts) would loop even in the simple case. The new code 
   maintains a list of messages relayed recently and drops any duplicates 
   that are detected.

10. Added code to clear the waiting for response to .quote'ed command state 
    after 30 seconds. Previously this state was not cleared resulting in 
    sysops receiving station lists from connected EchoLink conferences.
    
11. Added code to prevent the conference from connecting to itself.  The
    reason this occurs occasionally (once or twice a month) on some systems
    is unknown.  Apparently no harm comes of it, but it sure looks strange
    on the station list.
    
Known Bugs:
1. Stations listening to recorded files are able to transmit during pauses,
   but are not shown on the station list.

2. Welcome file playback does not work correctly for non-EchoLink clients.

####################################
Changes in version 0.52, May 28 2003:

New features: None, bug fix release.

Minor enhancements: None, bug fix release.

Bug fixes:
1. Corrected belch filter bug that was introduced by the addition of the 
   timeout timer feature in 0.51.  If the belch filter was enabled only
   PC clients were able to talk, repeaters, links and other conferences 
   (potential belchers) were not.
2. Corrected bug in RTP_Rx() which would could cause memory corruption if 
   recvfrom() returned an error.  Thanks to KD5MU for discovering and
   reporting this problem by code inspection.

Known Bugs:
1. Stations listening to recorded files are able to transmit during pauses,
   but are not shown on the station list.

2. Welcome file playback does not work correctly for non-EchoLink clients.

####################################
Changes in version 0.51, April 30 2003:

New features:
1. Added a new "auto lurk" feature that returns lurking users to lurk mode
   after a (configurable) period of inactivity.

2. Added the ability to automatically place users into the lurk mode after
   a (configurable) period of inactivity.  This may be enabled for 
   "normal users", conferences, -L, and -R stations independently.  

3. Added a ".monitor" command which allows a client to be monitored.  This is
   basically the opposite of the ".mute" command, the monitored client can talk,
   but not listen.  This is useful in certain (unusual) situations such as 
   the recent shuttle disaster when you want to listen to a conference, but 
   while ensuring local traffic does not interrupt it.

4. Added a timeout timer to enforce a maximum transmission length.

Minor enhancements:
1. Added a configuration file variable "Bind2IP" that allows thebridge to
   be configured for a specified interface rather than all available 
   interfaces.  This variable should be set on multihomed hosts to ensure that
   thebridge uses the same IP address to talk to clients as it does to talk
   to the EchoLink directory server.  For security reasons the EchoLink client 
   will not talk to a client that has a different IP address than that listed 
   by the EchoLink directory server.
   
2. Added a configuration file variable "AppName" that allows an alternate
   application name to be specified for logging and filenaming purposes.  This
   along with the Bind2IP variable allows multiple copies of thebridge to be
   run on a single multihomed host.

3. Added a configuration file variable "RunDir" that allows the directory were
   thebridge's PID file is created to be specified.  The default is /var/run.
   (This only applies to *nix versions of thebridge)

Bug fixes:
1. Corrected a bug in the hourly statistics logging which occurred when 
   RTP was enabled.  The hourly statistics included data for only RTP or
   EchoLink depending on the protocol of the first packet received after
   at the start of a new hour.  The statistics reported are now combined 
   totals for all protocols.

2. Added a terminating NULL to the string returned by a version query.

3. Corrected a bug which prevented the station list from being sent on connect
   when thebridge was configured to play a welcome file on connect.

4. Corrected a bug in the ACL handling that prevented .allow'ing a EchoLink 
   client by IP address.

5. Fixed (possibly, not tested) a bug which sent a verify command to a iLink
   directory server.  The verify command is not supported by iLink servers,
   only EchoLink servers.  (Is anyone using the thebridge with the iLink 
   private server package ???  If not this support will be dropped in future
   releases since I can no longer test it.)

Known Bugs:
1. Stations listening to recorded files are able to transmit during pauses,
   but are not shown on the station list.

2. Welcome file playback does not work correctly for non-EchoLink clients.

####################################
Changes in version 0.46, Jan 5 2003:

Minor enhancements:
1. Thebridge now reports a valid version number to the directory server. 
   Previously a hard coded version string reported by old iLink clients
   was sent.

Bug fixes:
1. Another bug in the directory server communications routine which could cause 
   an infinite loop when the connection to the EchoLink directory server failed
   has been fixed.  The infinite loop included log messages and since the log 
   file size limit check was ineffective against infinite loops huge log files
   could be created very quickly.
2. The code added to cause thebridge to exit if the log file exceeds 10mb in 
   now causes an intentional null pointer dereference instead of attempting
   to exit gracefully.  The assumption here is that the log has grown this
   large due to an infinite loop and a graceful exit is impossible. (Windows 
   version only).
3. Restarting thebridge when the LogFileRolloverTypes is 3 or 4 no longer 
   deletes the current day's log. (Windows version only)
4. User authentication failures are no longer cached, only successes.  (Yes
   this was documented as being in 0.45, but somehow the changes were lost
   before release, sigh).

Known Bugs:
1. Stations listening to recorded files are able to transmit during pauses,
   but are not shown on the station list.

2. Welcome file playback does not work correctly for non-EchoLink clients.

####################################
Changes in version 0.45, Jan 1 2003:

Minor enhancements:
1. User authentication failures are no longer cached, only successes.  
   Previously if a user attempted to connect to thebridge immediately after
   starting the EchoLink client it was possible for him to be locked out
   of thebridge until the next station list update occurred (by default every
   310 seconds).
2. Added code to detect certain infinite loops, log them and shutdown the
   bridge.  (With any luck this code will never be exercised, grin).
3. Timeouts have been added to all directory server communications routines.
4. Added administrator command .shutdown to remotely shutdown thebridge.
5. Added administrator command .quit to remotely shutdown thebridge without
   logging out of the directory servers.
6. Added administrator command .crash to cause a null pointer dereference
   to cause a code dump.  (This can be useful for debugging certain problems).
7. Added code to cause thebridge to exit if the log file exceeds 10mb in size
   (Windows version only).

Bug fixes:
1. The Windows log file is now closed and reopened (if logging is enable) after 
   the configuration file has been read. Previously thebridge logged to 
   "tbd.log" until midnight independent of the settings of the logging 
   configuration variables.
2. An bug in the directory server communications routine which could can an 
   infinite loop when the connection to the EchoLink directory server failed
   has been fixed.

Known Bugs:
1. Stations listening to recorded files are able to transmit during pauses,
   but are not shown on the station list.
   
#####################################
Changes in version 0.44, Dec 21 2002:

New features:
1. Added disk logging to the Windows version.
2. Added ability to run thebridge as an NT service on Windows 2000 and later.
3. Added option of playing a welcome message to users on connection to the
   conference.
4. Audio file playback now pauses between individual transmissions in the
   recording with configurable timing.
5. Added admin .quote command to allow commands to be sent to linked 
   conferences.
6. Added the ability to display a new users information (brag) sheet during
   his first transmission.
7. Added the ability to save user's brag sheets to disk.
8. Added new user .about command to display a specified station's brag sheet 
   on demand.
9. Modified the ".mute ." command to mute stations on linked conferences.

Minor enhancements:
1. Added admin .rehash command to reload configuration file remotely.
2. Added new hourly log entry showing current bandwidths, amount of traffic 
   sent since boot and uptime.
3. Added an option to dynamically maintain a *nix style host file of EchoLink 
   users.

Bug fix:
1. Corrected premature playback termination when thebridge is run on (very?)
   fast computers.
2. Corrected playback problems which occurred after approximately 20 minutes of
   playback (by implementing pauses during playback).
3. Implemented EnableDiskCommands configuration file variable as documented,
   previously it was ignored.
4. Files created by the .test command are now deleted upon completion of the
   playback.

#####################################
Changes in version 0.43, Nov 4 2002:

Bug fix:
1. Corrected bug introduced by forking a separate process for DNS updates
   which corrupted recordings.  This bug only effected the *nix version since
   the Windoze version does not fork.

#####################################
Changes in version 0.42, Nov 2 2002:

Upgrading:
1. The Working directory configuration file variable is no longer optional.
   thebridge will not run unless the WorkingDir variable is set to a valid
   subdirectory.  See the new configuration variable EnableDiskCommands if
   you wish to disable user commands that access the disk.

New features:
1. Added support for private conferences.
2. Added a belch filter to further help suppress repeater "bounce".  The belch
   filter sets a minimum keyup time for -L and -R stations before their audio
   is passed.
3. System security has been enhanced by checking the IP address and callsigns 
   of connecting stations with the Echolink directory server.

Minor enhancements:
1. Added support for Speak Freely and RTP protocols in addition to EchoLink.
2. User commands that use the disk (.test, .play) may now be disabled without 
   disabling the access control list.
3. Stations no longer need to be logged in to be added to the access control 
   list.
4. Thebridge may now be used with ilink directory servers.
5. The .help command is now accepted without a leading period, sigh.  The
   user is advised that all commands except help require a leading period.
6. Pause time and doubling warning messages are not longer sent from one
   conference to another.
7. Muted stations are now marked as muted in the station list.
8. Sysops may now change the lurking mode of other stations.
9. Sysops may now suppress text chat messages.
10.The Windows version of thebridge now wait for a key to be pressed before
   exiting after an error message has been displayed to give the user
   a change to read the message.  Go ahead and double click away ...

Bug fixes:
1. Most DNS hostname lookups are now performed on by a separate process 
   (*nix), or thread (Windoze).  This prevents the conference from stalling
   and losing audio when the DNS server is slow.
2. Failure to enable core dumps is no longer a fatal error.


#####################################
Changes in version 0.37, Sep 29 2002:

New features:
1. Added the ability to disable the lurking feature.
2. A new operator level called "sysop" was added.  Sysop's have access to a
   subset of the administrator commands.
3. Added the ability to enforce a mandatory gap between transmissions to
   suppress repeater "bounce", allow time for timeout timers to reset, and
   give repeaters and links time to drop the connection.
4. Added .users command that lists all users along with their attributes.

Minor enhancements:
1. A message is now sent to administrators and sysops when a .connect request
   is refused by the target station.
2. The format of the doubling warning message has been changed to make it
   compatible with older versions of the EchoLink client.
3. The .mute command now lists stations that are muted if a target station is
   not specified.
4. Added '.' as a shorthand for currently talking station to the .mute command.

Bug fixes:
1. Text messages from stations that are .muted are now forwarded.
2. Certain invalid RTCP packets no longer crash the Windows version.
3. An error in the format of the RTCP BYE packet was corrected.
4. Modified TimeLapse() to handle overflows properly.  This bug was causing
   the bandwidth calculations to be bypassed on occasion.


#####################################
Changes in version 0.34, Sep 15 2002:

New features:
1. Added new administrator commands .connect and .disconnect to allow multiple
   conference bridges to be linked.
2. Added additional statistics to the .stats command.  The receive and transmit
   bandwidth is now measured constantly and peak values are retained for 
   display. The number of packets, bytes received and transmitted are counted. 
3. The Echolink client's "Request version Information" feature is now supported.
4. Added configuration file variables to set the contents of the banner area.
5. Added configuration file variables to allow current and maximum user counts 
   to added to the location string and conference ID line.
6. Added configuration file variable to specify location of temporary files.
   If this variable is not set the commands which create temporary files are
   disabled.
7. Added a configuration file variable to specify the user ID thebridge should
   run under. (non-Windows version only)
8. Added new user command .stop to allow bulletin playback to be terminated
   without disconnecting.

Minor enhancements:
1. The bulletin list now includes the playback time for each bulletin.
2. The doubling warning message now includes the callsign of the person that
   is talking.
3. Timestamps are now included in recording at the beginning of each audio
   segment.
4. The file format of recordings has been modified to make it platform 
   independent.  Previously values were written in native format, now they
   are written in network order.
5. The way SDES packets are sent to clients was changed to make connections
   a bit more robust.  Previously SDES packets were only sent in response to
   SDES packet received from the client.  Now SDES packets are sent 
   periodically.
6. Changed the way the station list works (yet again).  When a station 
   transmits he is now moved to the top of the station list and remains there
   after he stops talking.
7. Added the configuration file variable to enable/disable the display of the 
   "<SB>" string.
8. Added code to remove any leading path from filename for record commands.
9. Modified DeltaTime2String() to suppress display of days when days is zero.

Bug fixes:
1. Correct a bug which would cause a crash if a user disconnected while 
   listening to a recorded bulletin.
2. Corrected bug in the message logged when an attempt to resolve the directory
   server's IP address failed.

#####################################
Changes in version 0.26, Aug 31 2002:

New features:

1.  Added new administrator commands .admin, .admins, .record, .list, .mute, 
   .kick, .ban, and .info.
2.  Added new user commands .list, .play, and .stats.
3.  Modified the station list so that new stations enter at the top of the list.
4.  Modified the station list so the station talking is always displayed.
5.  Added total number of connected stations to top of station list.
6.  Added code to send a warning message to stations that double.
7.  Added support for backup directory servers.
8.  Modified all log entries to use %m for error message display when available.
9.  Added amount to time client was connected to log entries.
10. Added (optional) welcome message at bottom of station list.

Bug fixes:

1. Corrected sockets resource leak. (Crashed Windows version)
2. Corrected dirserver connection hang on Windows version.


#####################################
Changes in version 0.21, Aug 17 2002:

New features:
1. Added .help, .?, .test, and .version commands.  
2. Added abilty to record and playback audio from files.
3. Added code to automatically exit lurking mode when a lurker talks.  
4. Added code to enable core dumps (thanks to WD4NMQ).  

Bug fixes:
1. Fixed a bug that allowed timed out talker to keep transmit token forever.  
2. Corrected a bug that allowed two stations to talk at once when they doubled.
3. Removed \r from end of commands before logging them.
4. Removed some left over debug info from log.


####################################
Changes in version 0.18, Aug 8 2002:

Initial release