Merge pull request #7 from sanjay900/master

Fixing nametag permissions removing unnecessary code
Fix NPE being thrown due to null parameters
Merge pull request #8 from skyrimfan1/master

NullPointerException
Remove unused things, readability, cleanup (open)

We'll be working to improve NametagEdit as a whole step by step.
Hopefully we can get other developers to utilize the API.
Fix PermissionsEX Group compatibility, possible fix client crashes

Ive added checks to see if the permissions entity being changed is a
group, and to get its players instead of just treating the group as a
player.
I tried to do this to GroupManager, but you can't get a list of group
manager players from a group manager group.
Ive removed removing all players from a team, and just deleting the
team. The server was still stable over many reloads after i removed this
code, and my clients no longer crashed.