Split off deprecation tests.
Split off deprecation tests.

Julian/jsonschema,Julian/jsonschema,eodolphi/jsonschema,python-jsonschema/jsonschema,varunarya10/jsonschema,wikimedia/operations-debs-python-jsonschema,jamesmarva/jsonschema,sightmachine/jsonschema,dnephin/jsonschema,eodolphi/jsonschema,wikimedia/operations-debs-python-jsonschema,mathewmarcus/jsonschema