Fixed NPC problems with Citizens NPC's by adding metadata check
Update config version to 2.0, added customisable item instead of compass
and clock
Merge pull request #12 from AmauryCarrade/newArenaStorage

New way to manage & store arenas
Added '/spec config' command and fixed '/spec reload'. Dev API toggle
setting should now work, before it did nothing until a complete reload
of the plugin.
Merge remote-tracking branch 'origin/master' (fixed conflicts)
Fixed NPE's due to parameter length being unchecked. Oops!
Fixed some bugs and started adding "/spec config"
Finished /spec config, it now works fully.