#888024 by kiam: Incompatible with custom 404 pages. #923664 by kiam: Code is using wrong function names.

By kiam: Fixed the function opensearch_unique_values(), which was not returning the correct value when the parameter  didn't have the default value.

#829644 by neclimdul, kiam: Open search triggers search on search landing page. By kiam: Corrected the code that shown the tokens help.

#829326 by neclimdul, kiam: Module configuration links are broken for modules that don't return names.

By kiamlaluno: Added a message in the update function about the new URL for the settings page; changed the update function, which now verify if token.module is enabled, before to enable opensearch_token.module.

By kiamlaluno: Changed the code in _opensearch_is_search_result_page() to verify the result of hook_search() to decide if the page is a search result page (as proposed by Dave Reid).

By kiamlaluno: Corrected the name of the hooks implemented in opensearch_token.module; added more tokens.

By kiamlaluno: Removed the code to implement a feature; added the code to remove the Drupal variables used by the module.