fixing type inheritence
codereview cleanup
adding MRO support for persisted types via the IsA relationship
adding mro attr to IsA rel
addressing codereview
Merge branch 'fix-inheritence' into fix-MRO
Merge pull request #68 from onefinestay/fix-inheritence

fixing type inheritence
Merge remote-tracking branch 'origin/master' into fix-MRO
Update setup.py
renaming mro to base_index
Merge pull request #70 from onefinestay/fix-MRO

Fix MRO issue
version bump for new release
Merge remote-tracking branch 'origin/master' into class_attr_rework

Conflicts:
	kaiso/persistence.py
	test/test_persistence.py