[interfaces] describe more explicitly what should be implemente in the ICalendarable interface
msgid"__msg state changed"msgstr""msgid"managers"msgstr""msgid"users"msgstr""msgid"guests"msgstr""msgid"owners"msgstr""msgid"read_perm"msgstr""msgid"add_perm"msgstr""msgid"update_perm"msgstr""msgid"delete_perm"msgstr""