Created SetBiome Command

Yes its messy, Yes there is most definitely room to improve but it does change the selected area's biome without problems :)
Added canSetBiome() Permission
Updated plugin.yml to include /setbiome
Updated plugin main to include setbiome command executor
Update SetBiomeCommand.java
Fixed and final commit for setbiome command
Create RemItemsCommand.java
Update Tregmine.java
Update Rank.java
Update plugin.yml
Merge pull request #57 from JoshMorgan/SetBiome

SetBiome Command PR
Reset mentor and student fields after /mentor complete.
Restricted set_biome to players with fill rights
Restore flying when using /survival
Merge remote-tracking branch 'josh/RemItems'

Conflicts:
	src/info/tregmine/Tregmine.java
	src/info/tregmine/api/Rank.java
Initial work on zonemapper
Got zonemapper working
Merge pull request #64 from notaro1997/master

minor changes, added usage to plugin.yml
Fixed some small things in mapper
Added online time to PlayerListAction