Update Bootstrap, new UI

Update Bootstrap, new UI
Merge branch 'gh-pages' into ModifyUI
New css, change graph line colors
Fix up graph displaying / nav
Merge branch 'ModifyUI' of https://github.com/dget/sf-transit-inequality into ModifyUI

* 'ModifyUI' of https://github.com/dget/sf-transit-inequality:
  New css, change graph line colors
  Smaller dots and bigger tooltips
  Add new data
  Fix bug with tooltip behavior.
  Added multiple colors for graph lines
Fix up CSS so the graph is less wacky
Misc changes
Add key, text color changes
Add key
Merge branch 'ModifyUI' of https://github.com/dget/sf-transit-inequality into ModifyUI

Conflicts:
	assets/css/site.css
	index.html
BART loads on first page
Merge branch 'ModifyUI' of https://github.com/dget/sf-transit-inequality into ModifyUI

* 'ModifyUI' of https://github.com/dget/sf-transit-inequality:
  Add key
  Add key, text color changes

Conflicts:
	index.html