Merge branch 'master' of github.com:metabase/metabase into chart-warnings

OSX/Metabase/UI/MainViewController.m

...nd/src/metabase/admin/datamodel/containers/MetricForm.jsx

...d/src/metabase/admin/datamodel/containers/SegmentForm.jsx

frontend/src/metabase/components/Button.jsx

frontend/src/metabase/components/DownloadButton.jsx

frontend/src/metabase/components/FieldSet.jsx

frontend/src/metabase/icon_paths.js

.../src/metabase/query_builder/components/DownloadWidget.jsx

...abase/query_builder/components/QueryDefinitionTooltip.jsx

.../metabase/query_builder/components/QueryVisualization.jsx

...nd/src/metabase/query_builder/containers/QueryBuilder.jsx

frontend/src/metabase/query_builder/selectors.js

package.json

src/metabase/api/card.clj

src/metabase/api/dataset.clj

src/metabase/driver.clj

src/metabase/driver/druid.clj

src/metabase/driver/druid/js.clj

src/metabase/driver/druid/query_processor.clj

src/metabase/query_processor/annotate.clj