Started working on sponsor tab
Added a mockup for one sponsor listing
Planning on having three sponsors per row
Created sponsors tab
Fixes #59
Merge branch 'sponsors'

Conflicts:
	_includes/themes/twitter/default.html
	assets/themes/twitter/bootstrap/css/desktop.css
	assets/themes/twitter/bootstrap/css/mobile.css
Merge branch 'master' of github.com:spsu-auv-team/spsu-auv-team.github.com