[3.6.2] TreeGravity handles all cancelled events now, not just for WorldGuard + bug fix:

• I've been looking at this wrong and was trying to cater to the specific rules of each plugin, instead of letting plugins like World Guard and Grief Prevention cancel the blockbreak events themselves.
  
• Now, the TreeGravity blockbreak method runs after all other plugins, checks whether the blockbreakevent was cancelled by another plugins, and doesn't break any logs if the event was cancelled.
  
• Much simpler this way than catering to the specific rules of every grief prevention plugin out there. Can't believe i didn't think of this before, thank you all for your patience!
• Bug Fix: The last update, 3.6.1, should have fixed all griefing issues. Fixed a bug where when a player tried to break a tree in a protected region, they could not break any logs anywhere even if they were in an unprotected region.

**Hopefully this forever fixes the griefing issues, its been too long awaited. As always, let me know of ANY and ALL issues you encounter. Thanks!