Fix autodiscovery
Fix autodiscovery

523c25807d6e4b2d356580e515258d67a0794d95 broke autodiscovery for applications
that do not import `gargoyle.builtins` anywhere themselves, as it removed the
line that imported them.

nkovshov/gargoyle,nkovshov/gargoyle,nkovshov/gargoyle,YPlan/gargoyle,roverdotcom/gargoyle,roverdotcom/gargoyle,YPlan/gargoyle,roverdotcom/gargoyle,YPlan/gargoyle