reify_object_attrs
tests for unify/reify_object_attrs
doctests in unifymore
reorganize unifymore.py.  Shuffle code around.
embellish goalify docstring
unify/reify isinstance list
seteq sorts inputs

This yields faster initial matches
seteq uses condeseq

yields faster initial matches
add seq_registry
eq_assoccomm queries seq_registry
Merge pull request #25 from mrocklin/seq_registry

Seq registry