Merge pull request #361 from wmchris/master

Removed unused imports
Added checks to BukkitPlayerCache that the entity is still alive.
Merge branch 'master' of ssh://github.com/keepcalm/BukkitForge
Fixed /fly
Register worldprovider before creating dimension
Add SpecialSource in preparation for new plugin porter
Added lombok 0.11.6 for SpecialSource
Added jopt-simple 3.2 for specialsource.
Added SpecialSource to lib.
Added SpecialSource dl to BukkitGuava10Download
Finished integrating SpecialSource into BF.
Fixed compile error
Keepcalm is a massive derp.
Fixed a plugin-loading bug. Starting to work on chunk regen
Fixed NPE on plugin load
Fixed chunk regen. Hopefully.
Added JSON simple download. Fixes #363
Regen fix. Again
Fixed chunk regens not being sent to players
Added java persistence API