Pasted the updated transformation.py file from www.lfd.uci.edu/~gohlke.  The copyright is 2015, not 2014, so maybe the broken tests work now?
Pasted the updated transformation.py file from www.lfd.uci.edu/~gohlke.  The copyright is 2015, not 2014, so maybe the broken tests work now?

TomTranter/OpenPNM,stadelmanma/OpenPNM,PMEAL/OpenPNM