Refs #5128: Upgrade from Bootstrap v2.3.2 to v3.0.0.
Merge branch 'develop' into feature-bootstrap3.0.0
Refs #5128: Changed Bootstrap 2's row-fluid & span syntax to Bootstrap 3's row & col syntax.
Refs #5128: Recompile boots_grid.css with updated Bootstrap 3 LESS files.
Changed target of bootstrap-alert.js, which was renamed to alert.js in Bootstrap 3.
Removes overrides for solr breadcrumbs
Refs #5994: Updated Modernizr to include touch support tests and css classes.
Refs #5994: Updated Modernizr to include SVG support.
Refs #5901: Assume both sidebar and content regions should span 12 grid columns on xs and sm breakpoints.
Fixes rendering of select box for mobile menu
Refs #5021: Allow first sidebar to appear beside main content on tablet.
Refs #5413: Assume all blocks should span 12 columns at Bootstrap's xs threshold (i.e., smartphones < 768px width).
Refs #5990: Added a semantic class to the menu wrapper.
Merge commit 'cc6d1af84ed11d4d3e51a80cce7127ca8008df9b' into develop