v0.9.2 - 09.07.2013
*  Fixed NullPointerException

v0.9.1 - 08.07.2013
*  Updated metrics

v0.9 - 07.07.2013
*  Fixed Deprecated and ConcurrentModificationException - may but should not impact performance

v0.8 - 23.07.2012
*  Fixed PlayerTeleport causing null pointer exceptions
*  Removed syncing causing server block, added sanity checks to avoid cheating

v0.6 - 26.06.2012
*  Added some checks to avoid async race problem
*  Negative perms are passed "as is" and with false.

v0.5 - 20.06.2012
*  Added world flag support
*  Added teleport listener (due to residence ignore Teleport until player move)

v0.4 - 20.06.2012
*  Fixed user quit/login producing harmless error.

v0.3 - 18.06.2012
*  Added flag permissions
*  Added flags.yml

v0.2 - 14.06.2012
*  Added sources to jar

v0.1 - 14.06.2012
*  Initial version.