Add skeleton transfer modal

This adds a basic skeleton for the transfer modal we'll need on the call
view page. For now, the demo lives on the landing page since there's
nothing else important there.

Everything is a placeholder - the radio button selectors and buttons
don't do anything.
Better example
Replace jQuery and Bootstrap with UI Bootstrap so it plays nice with Angular
Update README

Make the Karma section more uniform.
'type' instead of 'action'
Merge branch 'dashboard' into transfer-modal

Conflicts:
	app/views/static/main.html.erb