Initial work on migration to Bootstrap 3
Update the progress bars to work with Bootstrap 3.
Use the new Bootstrap 3 grid system.
Use the new Bootstrap 3 glyphicons.
Use the new Bootstrap 3 breadcrumbs.
Don't clip popovers.
Restored old table styles.
Added right margin to the glyphicons so the folder-open icon won't touch the surrounding text.
Merge branch 'bootstrap-3'