0.2.3.2:
Worked around very nasty bug with double buffering

0.2.3.1:
Small but crucial bugfix

0.2.3:
Further optimizations;
Added "hints" as a rudimentary form of in-game help;
Fixed some nasty bugs.

0.2.2:
Mac port by Sijmen Mulder;
Display optimizations;
Misc bugfixes.

0.2.1:
Display bugfixes/workarounds;
Missing GPL boilerplate added to source files;
Documentation improved.
