TODO for 0.3.4:

Primary goals:
	* Auto-detect version number from Sierra's executable
	* Add PCM output support and one driver to use it
	* Re-implement on-screen console
	* operations.c: Add full support for state->visible_map
	* optimize pic drawing
	* Add graphical game selection screen

Secondary goals:
	* docs: Mention words with class set to zero (no word).
	* grammar.c: Replace proto-Earley parser with backtracking Earley

Bonus goals:
	+ Add glx graphics driver


*: Normal goal
+: If not met for 0.3.4, the goal will rise up one class

