remove Intercom from main repo.

re-add the gear icon.

Add transition animations to navbar items.

Remove insane code for loading Google Maps

Instrument setup

add version number on documentation link for 'Help' in dropdown list.

Hide hidden tables in data reference

fix filter icon

use the GA code that is injected into the app dynamically and instrument our setup steps so we know if people fail on install.

restore some icon paths that went AWOL.

Update query builder error messaging

adding an `About Metabase` option to the user profile dropdown.  

Saved Questions page

mb colors in js and color harmony for higher range visualizations

few fixes and tweaks to get the new chart/dash illustration icons working and showing up properly on Recent Views box on homepage.