Implement unit test for hasGravity(). Adds BUKKIT-3832
Add Fish (Hook) entity to PlayerFishEvent. Adds BUKKIT-1025
Ignore all .DS_Store files, not just the one in the project root.
Add method to get the source of a TNTPrimed. Adds BUKKIT-3815
Add ability to modify ThrownPotion properties. Adds BUKKIT-3197