New Dungeons, bosses, items, collectibles

Added 1 level dungeon: Lich Brothers Mansion
Added 2 level dungeon: Homlet Caves
Added 2 level dungeon: Ancient Dwarven Ruins
Added 8 new bosses
Added 8 new boss items
Added 14 new collectibles
Added entrances to new dungeons on Norkos map
New Dungeons, bosses, items, collectibles

Added 1 level dungeon: Lich Brothers Mansion
Added 2 level dungeon: Homlet Caves
Added 2 level dungeon: Ancient Dwarven Ruins
Added 8 new bosses
Added 8 new boss items
Added 14 collectibles
Added entrances to new dungeons on Norkos map
Fixed: Homlet Caves entrance stairs
Merge pull request #619 from sedgwick/map-changes

New Dungeons, Bosses, Items, Collectibles