release row and table locks
release row and table locks

so that SCHEMA dropping won't block afterwards, even if test failed.

See http://stackoverflow.com/a/35888141/674064

geometalab/osmaxx,geometalab/osmaxx,geometalab/drf-utm-zone-info,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/drf-utm-zone-info,geometalab/osmaxx,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/osmaxx