Update 0.722 patch notes: Backpacks, Offline Mode, Rat Event, New Items & Perks — Cave Crawlers Steam update #1110810

Uploaded build 0.722 to default branch Plague Rat Event: Plague Rats have been unleashed from the opening of the Ancient Door! You'll find large groups of Plague Rats infesting the caves, being bit by a Plague Rat grants your dwarf a strange debuff... Backpacks: Added backpacks, backpacks can be worn in a new backpack slot and grant your player additional inventory slots to store items. Added new rare backpack Adventurer's Backpack, which can be found in the Crystal Caverns. Added new common backpack Linen Pouch, which can be found in the Dwarven Caves. Items: Added 2 new backpacks, details above. Added new epic sword Hero's Sword, which can be obtained by pulling the sword out of the stone. Added new epic hammer Brutal Basher, which can be fou...