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.
* 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
