Removed code for turning off Bootstrap dropdown data attributes in sidebars
Updated responsive dropdown menu link style in mobile
Fixed sidebar-first and sidebar-second div class conflict with body class.  Renamed sidebar div classes to site-sidebar-first and site-sidebar-second.
Reduced CSS specificity of span class transformations
Updated conditions for displaying the close button in alert messages
Added IE compatibility CSS fixes
Added ARIA roles
Merge branch '7.x-2.x' of https://github.com/SU-SWS/open_framework into 7.x-2.x