Merge pull request #3876 from metabase/math-aggregations-frontend

bin/build

frontend/interfaces/underscore.js

...end/src/metabase/admin/datamodel/components/FormInput.jsx

.../src/metabase/admin/datamodel/components/FormTextArea.jsx

...metabase/admin/datamodel/components/ObjectRetireModal.jsx

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

frontend/src/metabase/admin/datamodel/selectors.js

frontend/src/metabase/components/AccordianList.jsx

frontend/src/metabase/components/Popover.jsx

frontend/src/metabase/css/core/inputs.css

frontend/src/metabase/css/query_builder.css

frontend/src/metabase/lib/dom.js

frontend/src/metabase/lib/expressions.js

frontend/src/metabase/lib/expressions/formatter.js

frontend/src/metabase/lib/expressions/index.js

frontend/src/metabase/lib/expressions/parser.js

frontend/src/metabase/lib/expressions/tokens.js

frontend/src/metabase/lib/query.js

frontend/src/metabase/lib/query/aggregation.js

frontend/src/metabase/lib/query/breakout.js