* db_engine_specs: added engine spec for clickhouse
* models: group by time without join on subquery
if this is enabled, it will remove the subquery when grouping by time,
and group by time will be rewritten as group by timeslot, ...
this particularly fixes clickhouse backend
* docs: added clickhouse
* models: allow using secondary dttm columns as constraints
* superset/forms: configurable default slice since time
* superset/models: respect dialect quoting
* dttm handling, codeclimate tweaks
* react: using prop-types package to fix deprecated React.PropTypes property warning
https://facebook.github.io/react/warnings/dont-call-proptypes.html
* removing babel devDependency because has been deprecated in favor of babel-cli
this fixes a warning during `npm install`:
```
npm WARN deprecated babel@6.23.0:
In 6.x, the babel package has been deprecated in favor of babel-cli.
Check https://opencollective.com/babel to support the Babel maintainers
```
* js: setting ExploreActionButtons.queryEndpoint PropType as required
because it's required in the child component DisplayQueryButton
* js(tests): using object in expandedSlices prop type of SliceCell tests
* js(tests): adding required props to SqlEditor mockedProps
* js(tests): adding required prop editorHeight to TabbedSqlEditors mockedProps
* js: removing unused moments dependency
* Fixing PropTypes warning message
React recently started warning on the upcoming deprecation of
React.PropTypes, the new approach is to use the `prop-types`
npm package instead.
* Fixing the tests
The standalone view doesn't need to fetch the datasources asynchronously
to fill in the dataources dropdown, it also doesn't need to render any
of the controls.
* fix scrolling for query search, getHeight was returning NAN
* add styling for query search pagination
* remove console.log
* make pagination buttons match bootstrap theme small buttons
At Airbnb we use these WARNING_MSG configuration element to make it
clear that we're in the staging environment.
Before this PR it would render under the navbar and mess up some of the
heights configurations, where you wouldn't be able to scroll all the way
to the bottom of the page. This fixes it.