Fix PEP8 issues in nx.utils.rcm
Fix Cuthill-McKee ordering examples
Avoid quadratic behavior in connected_cuthill_mckee_ordering
Fix PEP8 issues in Cuthill-McKee ordering tests
Handle nondeterministic output in Cuthill-McKee ordering tests
Merge pull request #1231 from ysitu/rcm

Handle nondeterministic output in Cuthill-McKee ordering tests