Merge pull request #1 from drampelt/master

Update to 1.5.1, add onHold event, automatically include plugin.yml in the jar
Update #9

- Added TagUtils (Allows custom tag for itemstack, chunks.)
- Updated ChunkData to depend on the TagUtils.
- Removed ProtocolLib depency
- CustomItemStack no longer extends ItemStack (Will break stuff.)
- Some Maven changes.
Didn't remove testsword. :/
Fix errors and formatting code.