Some initial changes, not working
This actually works!
- 2 x 7 hour plane rides = 1 major revision
- The only major revision is that throat connections are now called conns, in the spirit if reducing typing
- labels and properties are now preceded by 'pore.' or 'throat.'
Fixed trim function
Merge branch 'develop' into feature/NewPNM

Conflicts:
	OpenPNM/Network/__GenericNetwork__.py
	run_script.py
Added some tests to Harolds pytest file
Lots of little cleanup and changes to tools like props and labels
more changes to props and labels
Updated check_health to accept 'pore.prop' or just 'prop' as arguments
- This check should probably be incorporated more generally
Changes to the way props and labels work.
- they used to return a dict named 'pore' or 'throat'
- now they return a list containing both 'pore' and 'throat'
- you can send 'pore' or 'throat' as an argument to get only one type
Improved the health checks
- There is now only one, data_health
- It prints pretty list of the status but also returns True for healthy and False for ill
Added Siblings mode to the clone method.  This means that a batch of pores can be cloned and they will retain the throat connections to each other.
Trying to get VTP working, still broken
I created ip_demo for Harold last week. That's what I used to test out the new branch. I can't get VTK to work. Maybe we're supposed to use Vtp now?
Added a network_health method, analogous to data_health.  It checks for pores with no throats, and distinct clusters.  This is meant to analyze integrity after trim operations.
Refinements to network_health; it now returns a named tuple with the details of which pores are isolated and which pores are part of each disconnected cluster
Merge branch 'feature/NewPNM' of https://github.com/PMEAL/OpenPNM into feature/NewPNM
Updated a few physics methods to use the new interpolate_data method
- Removed interpolate_pore_data, and interpolate_throat_data
- Moved amalgamate data to Tools, BUT this should probably go into the VTP file maybe, since that is the only place that uses it.
Added names back to all objects to make the amalgamated dictionary look nicer.
Removed all traces of the _instances trick
- Objects can still be found by name or type using the 'find_object' method
- This method searches for the objects by scanning the network->geometry->physics->fluid path structure