clearfix socialshareprivace
limit text-area width
add adhocracy icon font
make basic layout responsive
add media query detection to modernizr
add viewport

this greatly improves rendering on mobile browsers
responsive footer
responsive tiles
responsive sectionpage
responsive sidebar nav
responsive content_nav
hide feedback on mobile
disable responsiveness for now

not all UI elements have been converted to responsive design.
revert this commit when everything is done.