Making default_query use json.loads validation, move generate_query into biothings pipeline (overridden in mygene only), make userqueries include a filter.
Making default_query use json.loads validation, move generate_query into biothings pipeline (overridden in mygene only), make userqueries include a filter.

biothings/biothings.api,biothings/biothings.api,SuLab/biothings.api