sk89q/worldguard — pull request #198 by Deaygo (2012-03-23 20:48:27+00:00)
Title: Added 'allow-flight' boolean flag for regions

With the new API for flight control added here https://github.com/Bukkit/CraftBukkit/commit/efab19b1b7a812071b2f38e37e4e9ba273971468 and an update here https://github.com/Bukkit/CraftBukkit/commit/82402adbe82ba59ccb27f7a4fea792dac68fcdfa
I tried my hand at adding a region flag to worldguard to control it.