For Region Protection. ProjectKorra respects explosion and fire flags in
various plugins, so this will allow an ability to register as such.
isIgnite() means the ability produces fire (Like Blaze) and
isExplodeAbility() means the ability produces an explode (Like FireBlast
and Lightning)
Removed WaterReturn (Each Ability is responsible for handling it)
Added FreezeMelt (Just contains the basic methods, not an ability)
Improved physics handling.
Removed WaterPassive where water would automatically spread (Until I
find a workaround, exponentially flooding worlds weren't very fun)