added intro text to homepage and breadcrumbs
fixed breadcrumbs
added subnav, minimized main title, styled search bar
more styling to search bar
styled search_bar
changed search_bar color
styled search results inspired by NPR redesign
added hoverableLink styles for hover over entire div sections of trials
mobile responsive for media query @480px
mobile responsive for media query @767px
fixed error on search_results class
order the media queries according to size
updated subnav styling
Merge branch 'development' of https://github.com/mwenger1/clinical_trial_match into development