* Adds new macro to get filter values from "filters" and "extra_filters"
Adds test for filter_values macro
Adds doco for filter_values
Changes filter_values return type to be a list rather than string
* Makes return value type consistent
- filter_values always return a list
* fixed RSTs so images will show up on github
* fresh screenshots on main page
* removing irrelevant portions
* moved a set of sections under 'Misc'
* rebuilt the Gallery with all screenshots
* 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