Fixed jetty save location

- Fixed jetty save location when running rake ci. Jetty got saved
  under folder "--save_location=jetty" which then broke the raking
  later on.
Made selected range appear as other selected facets

- Converted CSS to use SASS files and grouped related items
  their own into separate files which are then imported by the
  main css.scss file.
- Adjusted the selected year range to appear as the other Blacklight
  selected facets.
- Adjusted test to work with new appearance of selected year range.