ref #8011 Fix potential NPE
ref #8011 Sort facets by category
ref #8011 Use termType as facet category
ref #8011 Use term search in feature tree context menu to add features
ref #8011 Enhance sort on search results
ref #8011 Sort search results
ref #8011 Add warning for exceeding search result limit (500)
ref #8011 Add generics for search results
ref #8011 Refactored package structure