Rough draft omni sort
Merge branch 'dev' of github.com:visgence/django-chucho into dev
Search username and single name for user.
Follow foreign key relations.

       Also, use Q objects instead of union of querysets, so filter is only done once.
Merge branch 'master' into dev
Add default manager permission methods
Fix logic error in default manager methods
Fix log error in get_editable/viewable
Move omni instantiation in read_source up one level
Ignore boolean fields by default in omni.
Merge branch 'dev' of github.com:visgence/django-chucho into dev