New cave tilesets: cave2_bilevel.png, cave2_bilevel_water_lava.png, cave2.png, cave2_sewer_mine.png, cave2_sewer_mine_x2.png, cave2_sewer_mine_x3.png, cave2_sewer_mine_x4.png, cave2_sewers.png, cave2_transistions.png, cave2_x2.png, cave2_x3.png
Edited Desert2 to add the sewer entrance
Map edits for new caves.
Map edits to set all layers the same.
added 021-3 sewers
added 002-2 Malvox house
added 002-3 mining camp
added 043-1 new area for slime quest
added 043-3 new dungeon for slime quest
moved old 002-3,002-4 down one level
added sewer entrances to 021-2
adding new particle effects for new mobs angry fire goblin, angry green slime, angry sea slime
adding new mobs angry fire gobline, angry sea slime, angry green slime
adding new NPC supply chest to replace the treasure chest in the mines.
 and all the liscene file changes for all the art in previous commits
Merge remote-tracking branch 'wushin/tonori-cave-release'

Conflicts:
license.txt: graphics/tiles/Woodland_ground.png was changed in master
    added also enchilado here, since that edit was forgotten
npcs.xml: id conflict with trapper and supply chest, moved supply chest down to 378