A update packed with new features.

-Added inmunity-to-fall-damage option in Config.yml
-Added worldguard integration (read plugin page and config comments)
-Added new messages options for WorldGuard integration
-New permission amazingfly.bypass to bypass Gamemode Restrictions
-New permission amazingfly.admin to have all plugin permissions
-New permission amazingfly.use.worldguard
-Modified the code to be case-insensitive in gamemode-restriction configuration
-Recoded some parts of the plugin to make it more scalable
-Modified /fly reload, now its /afly reload

How to migrate configs? Just backup your current config, then copy and paste the new config (see plugin page) and set back to the values you set before.