Add a function that filters out deleted rows
Change naive_list_policies to filter deletes on model side
Change list_states to filter deletes on model side
_grab_list no longer used
Change naive_list_webhooks to filter deletes on model side
No need to de-identify twice
Merge branch 'master' into auto-381-stop-pulling-index-when-listing

Conflicts:
	otter/models/cass.py
Merge pull request #229 from rackerlabs/auto-381-stop-pulling-index-when-listing

AUTO-381 stop pulling index when listing