add haml version of application.html layout
add mockups controller, routes, layout
add guard, guard-livereload
improve navbar
add user_show mockup
add three columns for group show page
finish group_show mockup
add activity_feed, group_navbar, group_quick_stats partials
add comment partial mockup
add members_listing, tabs partial
Merge branch 'foundation'

Apply layouts and mockups to master
improve user_form partial