added a freeze detection
fixed horselocker's parent version
fixed NPE
and another NPE
moved it to onEnable()
Merge branch 'origin/master'

Conflicts:
	cubeengine/src/main/java/de/cubeisland/engine/core/bukkit/BukkitCore.java
	cubeengine/src/main/java/de/cubeisland/engine/core/util/FreezeDetection.java
Merge branch 'master' into stable
Merge branch 'master' into stable
Merge branch 'master' into stable
Merge branch 'master' into stable
Merge branch 'master' into stable
fixed sql query on cleanup & optmize
merge master into stable
Merge remote-tracking branch 'origin/master' into stable
Merge remote-tracking branch 'origin/master' into stable
Merge remote-tracking branch 'origin/master' into stable
Merge remote-tracking branch 'origin/master' into stable
Merge remote-tracking branch 'origin/master' into stable
Merge remote-tracking branch 'origin/master' into stable
Merge branch 'master' into stable