Docs: Add a note about modifying class names used in Bootstrap uitheme
Core: add cssIcon class name options for no, asc & desc sorts
Filter: update themes to hide all elements when filter_hideFilters is true

It was not hiding filterFormatter elements properly
Core: widthFixed option will no longer target nested table colgroup elements
Docs: pager widget option comment correction
CssStickyHeaders: tables with a caption now work properly in Firefox
version bump