Merge pull request #5 from sanjay900/master

Fix Null pointers in API - Lets try this again
Update Changelog for @sanjay900
OCD
Suppress invalid maven warnings
Switch deprecation
Some optimizations in Packet class for better readibility and less bugs on version checking.
Merge pull request #6 from TheJeterLP/master

Some optimizations in Packet class for better readibility and less bugs on checking version.
Fixing nametag permissions removing unnecessary code

Stop ops getting perms for all prefixes
Allow stackable permissions e.g.
if you have multiple prefixes and
suffixes you will get the last one
applied to you
(this might mean telling people to flip their configs)
Since it reads from top to bottom and overwrites as it goes, so the
perms at the bottom overwrite the top