Added New 1.8 Meats to Cook

Added Mutton and Rabbit to the Cook list of Food
Added proper support for day/night message perms

Added proper checking for whether a player can see day or night
messages, fixing bug report
http://projectkorra.com/forum/threads/permissions-problem.1408/
Added sounds

Added airbending sounds for AirSuction and AirSwipe
Added the Flight Ability

- Merged the Flight addon into the Core
- Added the hovering toggle for Flight by clicking while flying
- Made Flight an admin-only ability like Bloodbending
Fix Flight Merge Conflict