Merge branch 'master' of github.com:metabase/metabase into weekapalooza

frontend/src/metabase/components/Header.jsx

frontend/src/metabase/dashboard/components/DashboardGrid.jsx

...end/src/metabase/dashboard/components/DashboardHeader.jsx

frontend/src/metabase/dashboard/selectors.js

frontend/src/metabase/lib/dom.js

...nd/src/metabase/visualizations/components/TableSimple.jsx

frontend/test/unit/lib/dom.spec.js

src/metabase/driver/mongo.clj

src/metabase/driver/mongo/query_processor.clj

src/metabase/driver/mongo/util.clj

test/metabase/driver/mongo/util_test.clj