Revert "Cleanup of GenericNetwork:  added flatten functionality to several methods, expanded doc strings"
Revert "Cleanup of GenericNetwork:  added flatten functionality to several methods, expanded doc strings"

This reverts commit 21dfce50e2cceb7b69765f7439687432e3f8bc80 [formerly 63333a322a24baf09a19bee940d21c12941acde3] [formerly 61cd2029f298af74f802973eeb9d64193b437c78].


Former-commit-id: 691db877745435e4b56911240794ef147681cb0d
Former-commit-id: 00f58d3cb1a3bad9262dd48cc86ac86695b1e2d5
stadelmanma/OpenPNM,amdouglas/OpenPNM,PMEAL/OpenPNM,TomTranter/OpenPNM,amdouglas/OpenPNM