Issue #881322 by Berdir: Fixed Multilevel menu fails to create active menu trail with same link_path() in different languages.

Issue #1225124: Fixed Unable to save menu item translation and other issues with the menu translation form.

Issue #1212200 by jox: Fixed Language in menu_links() does not get updated properly for language neutral nodes.

Issue #1185644: API improvements. Added hook_i18n_string_objects() for a module to return translatable objects, replacing string_list(). Added 'list callback' for i18n object metadata.

Issue #1185644: API improvements. Improved format access checking. Renamed i18n_string_object to i18n_string_object_wrapper

Issue #1185644: API improvements. Simplified path handling for string translation. Not needed anymore i18n_taxonomy_vocabulary class.

Issue #1175204 by webflo | Jerome F: Fixed Wrong URL in admin/structure/menu/manage/%menu/translate.

Issue #1164922 by webflo | neuronick: Fixed Undefined variable $reset in i18n_menu_translated_tree().

Issue #1157484 by das-peter | skilip: Fixed Both delete translation sets when deleting a menu and when deleting menu items.

Issue #1157456 by skilip: Changed Remove the  'Language neutral' option when translation mode is set to I18N_MODE_LANGUAGE.

Issue #1157848 by tobiasb: Fixed missing menu callback for the edit form of the translation set (menu link).

Issue #1157420 by skilipand myself: Copy the workflow of taxonomy term translation to menu item translation.

Issue #1157382 by skilip, dereine and myself: Improve and unify multilingual descriptions on vocabulary and menu forms

Issue #1157456 by skilip: Remove the 'Language neutral' option when translation mode is set to I18N_MODE_LANGUAGE