Fixes #5946 - Only call fact_name_class.maximum if necessary.
Fixes #5696 - Allow taxonomy and roles display
fixes #5966 - pin execjs for Ruby 1.8 compatibility
fixes #5793 - add pkg:generate_source rake task to create tar.bz2
fixes #5987 - remove unused packaging files
fixes #5879 - minimum of scoped_search 2.7.0 required