My table layout and collection info

This adds additional information in the my file listing that displays what collections a file is a part of.  There's also some cosmetic changes in the tables, such as not displaying the batch edit toggle in the collection view, and using chevrons instead of plus/minus signs.  This makes the UI more consistent and
:sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: :sunny: :rainbow: 
Yes, but I've had to re-include bootstrap in order to get that variable, and that did weird things with the css compiling.  Is there a way to re-add the bootstrap variables?  What I was really trying to do was get the color of the chevron that Blacklight uses in the facets, but I couldn't figure out what that was, so this was an approximation.