#894350 by elliotttf: Replace template_files with theme_hook_suggestions and added some documentation

#792184 by mgriego: Remove unnecessary special handling of option defaulting which actually causes problems in the new world order.

#768972 by dereine, cyberwolf and nicedawg: Add an option to disable an error message if terms do not exist on taxonomy term filter.

#843866 by dagmar: Allow summary views to specify their path rather than assuming the view path all the time.

#706680 by casey: Replace views_css_safe() and views_ui_item_css() with drupal_clean_css_identifier()