Fix markup and css for distorted search history

 - Use .filterSeparator instead of .label for the filterValue separator
 - Add explicit whitespace around separator
Merge pull request #517 from steffengodskesen/search_history_markup

Fix markup and css for distorted search history
Removed row wrapper from catalog show view.

- Removed the <div class="row"> wrapper from the catalog show view
  since it is already defined in the layout template.
Merge pull request #518 from jipe/master

Removed the row wrapper from the catalog show view since it's already defined in the layout template
added ability to use :rows instead of :per_page
Added z-index to CSS-dropdowns.

- Added z-index to CSS-dropdowns so widgets that would be covered by
  the dropdown don't shine through. Value for z-index is using
  bootstrap's zindexDropdown variable.
Merge pull request #524 from jipe/master

Added z-index to CSS-dropdowns to avoid covered widgets shining through