Test implementation of a purely random map generator
Try fixing loose blocks in circular room
Merge branch 'master' into map

Conflicts:
	game.py
	map.py
Rather ok Random Dungeon generator implemented

It generates rooms (circular or rectangular) connected
by corridors with a tree like hirachy. Since the room
position is random around the parent-room, there are
many cross-sections and composit rooms, building an
complex and interessting (and confusing ;-)) dungeon.