Lots of changes -- I'll use git properly in the future.
Merge branch 'master' of https://github.com/dmcskim/cladecompare

Conflicts:
	cladecomparelib/core.py
	cladecomparelib/gtest.py
	cladecomparelib/hypg.py
	cladecomparelib/jsd.py
	cladecomparelib/shared.py
	cladecomparelib/urn.py