Don't export classes if we don't need to update.
Fixed small mistake when updating.
Use own methods for getting nms classes.
Add event based behavior.

This can be used to automatically register events inside the event.
Used rb for 1.6.4
Add command to reload RE classes and some cleanup.
Use TreeSet for open nodes in pathfinder.
Add custom speed for wander around.
Fix entities not moving.

However, the speed attribute is still wrong.
Fixed being able to move while entity is on leash.

Also fixed some speed modifier issues.
Fix entities moving slow.
Also set player speed.
Wrong method changes in custom navigation.
Small changes.