Card JSON download endpoint

Google Analytics driver [WIP]

* hide headers and nav when printing

* add margin

* Update ExplicitSize to watch for window and print media query changes, use to ensure Dashboard is resized when printing

* increase contrast and remove superfluous styling

* only important things are important kyle

* re-add borders

* border contrast

Normalized stacked charts

* Let user create a new dashboard when adding a question

* Styling change for adding a question to a dashboard [skip ci]

Add missing icon import

* Align add new dashboard button

* Use link class instead of text-brand-hover

* Properly align "add to dashboard" element

Linkify URLs in table view, object detail, etc.

Usable table column enable/disabling with default disabled for "detail-only"

Minor docs formatting

Fixed misleading UI text

Multiple aggregations backend support [WIP]

Emphasis for warning against using H2 in production 

Change H2 filename suffix in documentation

Fix various issues with quick filter popover

Fix issue with not being able to go back to schema picker

Leaflet pin maps

Fix setting settings