fix geom and phys health checkers (on subway :-)  )
- delete_object now removes references from the dictionaries too
- interleave data is now private
clean ups to trim, but nothing major yet.
update_network is now private
Added 'exclude' mode to regenerate
Added a remove_model function to Core
- It turns out that removing models when data is set is impossible since it can't know where the data came from.
Merge branch 'feature/better_props' of https://github.com/PMEAL/OpenPNM into feature/better_props

Conflicts:
	run_script.py