mounts: fix up spritesheets mount system
mounts: rewrite item definitions as objects, rather than arrays, to
support UserSchema overhaul. Add items.food & items.mounts
mounts: factor food into random drops (40% food, 30% eggs, 40%
pots). This commit needs revisiting
mounts: fix spritesheets for rare mounts to work with mount system
mounts: some item-def DRYing, provide defaults rather than requiring defined
mounts: add egg.mountText so "cub" text doesn't show up for mounts
mounts: more item DRY-ing and cleanup
mounts: simpler, cleaner breakdown of potion rarity
mounts: remove food temporarily. merging to master so we can run schema
migration and start with item translations. This commit will be reverted
when mounts is fully merged
Merge branch 'mounts'