Merge branch 'master' into caching

docs/operations-guide/start.md

docs/users-guide/04-visualizing-results.md

docs/users-guide/images/visualizations/area.png

docs/users-guide/images/visualizations/bar.png

docs/users-guide/images/visualizations/donut.png

docs/users-guide/images/visualizations/funnel.png

docs/users-guide/images/visualizations/map.png

docs/users-guide/images/visualizations/number.png

docs/users-guide/images/visualizations/pin-map.png

docs/users-guide/images/visualizations/pivot.png

docs/users-guide/images/visualizations/progress.png

docs/users-guide/images/visualizations/scatter.png

frontend/src/metabase/css/core/text.css

.../dashboard/components/parameters/ParameterValueWidget.jsx

...ase/dashboard/components/parameters/ParametersPopover.jsx

...rd/components/parameters/widgets/DateAllOptionsWidget.jsx

...end/src/metabase/dashboard/containers/ParameterWidget.css

frontend/src/metabase/home/components/RecentViews.jsx

frontend/src/metabase/icon_paths.js

frontend/src/metabase/meta/Card.js