Merge pull request #30 from DrkSephy/master

Game polishing: Iteration #2
Renamed and moved lib/game/entities/misc/battle_anim_overlay.js to lib/game/entities/overlays/battle_anim_gui.js.
Hooked font-sugar plugin with button plugin.
Removed multi-color-font plugin.
Refactored fonts.
Added color indicator for stat increase/decrease in weapon bonus modal.
Realigned text for battle quick-summary modal. Added display for weapon name and icon for battle quick-summary modal.
Fixed bug with equip and unequip button displaying at the same time. Fixed minor console log errors.
Adding items and staffs into item catalog
Intermediate work on healing friendly units
Healing friendly units completed
Item consumption framework implemented