Notifications about issues (add/edit) are now sent in plain text and html.

Removed lang specific strings in the corresponding mail templates, so that there is only one template for all languages.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@723 e93f8b46-1217-0410-a6f0-8f06a7374b81

lang/zh.yml

@@ -474,6 +474,8 @@ text_tracker_no_workflow: No workflow defined for this tracker
 text_unallowed_characters: Unallowed characters
 text_comma_separated: Multiple values allowed (comma separated).
 text_issues_ref_in_commit_messages: Referencing and fixing issues in commit messages
+text_issue_added: %s ѱ
+text_issue_updated: %s Ѹ
 
 default_role_manager: 管理员
 default_role_developper: 开发人员