Merge pull request #20 from tyler569/master

Commandbook compatible warp signs.
Fixed issue with namesystem
Update to DERP

Resets the last derp on a successful derp.
Merge pull request #21 from tyler569/master

Bugfix - character limit on chatchannels
Merge pull request #22 from nevercast/patch-1

Update to fix derp timeout
Added worldedit restriction to //stack