Changelog:
- Ported back to BKCommonLib
- Added GetGunCommand (WIP)
- Using BKCommonLib for teleports (credits to sanjay900)
- Started work for turrets
- Gave the gun a unique name and description (WIP)

Known Bugs:
- Sometimes a user gets removed, then accessed, causing PortalStick to disable itself. Not sure if this is a Minecraft, Bukkit or BKCommonLib bug.
- The grills are decaying. Neither the BlockPhysics-, BlockFade- nor the LeavesDecayEvent seems to help here.

Signed-off-by: V10lator <v10lator@myway.de>