Update isRegionProtectedFromBuild() WorldGuard

* Re-organised Imports
* Update Korra to use WorldEdit 5.6.3 and WorldGuard 6.0.0 beta 2 (Allows for a version 5.x.x fall back)
* Addresses [Bug Report]http://www.projectkorra.com/threads/bending-error.586/ [ErrorLog]http://pastebin.com/B95ESqw5