Diggr: new release, v11.11.20

[tkatchev]

I've released a new version of Diggr today.

Changes:

  * A quest, of sorts: the Rehablitation Thunderdome.
  * A literal Deus ex machina.
  * Two new interesting cellular automata mechanics. (Swamp gas and
black mold.)
  * Bugfixes, of course.

You can download it from the official site: http://code.google.com/p/diggr-roguelike

P.S. The game feels slightly easier now, mostly on account of the
Thunderdome.

Thank you!