Tile wall texture. Closes #4.
Updated help text
Updated documentation.
Added termination option to cubicsuperpath.formatPath
Fixed spacing issue in simplepath.formatPath
Added difference function and boundary path function to svgtools
Template and inverted clipping now allow the floor to be behind the walls. Closes #6.
Merge branch 'master' of github.com:detly/dungeon

Conflicts:
	dungeon/template.svg