2015-10-21 UTC
# 
cwebber2 https://github.com/w3c-social/activipy/blob/master/activipy/core.py#L89 not the most efficient implementation, but it only runs once on type definition... it does a deep traversal of all parents, puts it in a list, then de-dupes... but the *last* instance of a class type is the one that's kept