Fixes to Issues from #24 to #28 on github
- #24 Functions now return in a more developer friendly way
- #25 Beehives and Spawners Interfaces don't return a NullPointerException when there isn't a Beehive or a Spawner near them
- #26 Beehive interface aren't swapped with a beehive anymore
- #27 Better errors for too much connected beehives and spawners
- #28 Trading Interface is (hopefully) consistent with range