Make 'delete' command kill the unit instead of destroying it.
Make projectiles vanish after a timeout.
Fix projectile landing positions with low framerates.
This was SVN commit r7837.
Add RelaxNG schemas for all current components.
Add -dumpSchema command-line option to dump the combined entity schema.
Add a Perl script to validate entity templates against the schema.
See #413.
This was SVN commit r7452.
Support sound group playback from simulation scripts. See #486.
Update some sound group files to sound better for rough testing.
Clean up CSoundGroup a tiny bit.
This was SVN commit r7437.
Add various GUI pieces (exit button, resource counts, unit details).
Clean up implementation of button panels.
Split some content out of 'common' and into page-specific files.
Delete some obsolete content.
This was SVN commit r7337.