Allow developer to pass "only_fields" and "no_dereference" filter to Persistance model "query()" method.
Allow developer to pass "only_fields" and "no_dereference" filter to
Persistance model "query()" method.

Plexxi/st2,nzlosh/st2,nzlosh/st2,StackStorm/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,Plexxi/st2,StackStorm/st2,StackStorm/st2