messages fix, add /manuclearp and /mangclearp
fix clear commands change mandemote and manpromote

dont make manpromote and mandemote act like manuadd when OP, 3 manuadd commands arent needed.
Update GroupManagerPermissions.java
add new commands, add alias to listgroups
add mising isopoverride check
fix alias
readd some checks
Merge pull request #371 from necrodoom/patch-72

add new commands and others
Fix loops.
More Necrodoom fixes.
another string fix.
Minor grammatical changes to config.yml
Fix NPE on invalid enchant
[FIX] ID 18, 29, 33 invalid damage values and more

expand IDs 98:1, 98:2, 98:3
Merge pull request #452 from evonuts/groupmanager

Minor grammatical changes to config.yml
Merge pull request #453 from necrodoom/patch-20

[FIX] ID 18, 29, 33 invalid damage values and more
[FEATURE] Add kill exempt :: new permission: essentials.kill.exempt
players with essentials.kill.force and console will still be able to override this
Restrict EssentialsTimer to 10ms execution time
Attempt to smooth out timer usage.
Add extra sign metrics.
Minor TP and timer tweaks.