Somehow Ace's "changeSelection" event is triggered when hitting
backspace (and shouldn't!).
changeSelection on our side triggers enough work to make the
holding backspace sluggish and laggy.
This fix ignores selection with a length of 1, avoiding mutating the
state altogether when hitting/holding backspace.
* 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
* Change in files
* Renamin files and folders
* cleaning up a single piece of lint
* Removing boat picture from docs
* add superset word mark
* Update rename note in docs
* Fixing images
* Pinning datatables
* Fixing issues with mapbox-gl
* Forgot to rename one file
* Linting
* v0.13.0
* adding pyyaml to dev-reqs
