David Bremner
    Implementation of the embeded PSTricks macro feature. Description of this
    feature in the documentation.

François Parisot
    Original version of the `export' function and improvement of the interactive
    assignment feature.

Peter Bartke
    Makefiles for cross-compiling Win32 executables of `eukleides' and
    `xeukleides' using the XminGW environment.

Philipp E. Imhof
    The `disc' point shape for `eukleides'.