Adding a hook in the heading on showing an issue
The heading (h2) in /issue/show is a good place to show something related with the identity of the issue, as http://redmine.ruby-lang.org/issues/show/1.
Could you add an hook point here? I would like to use the hook for the MailingListIntegration plugin which I am developing. I think it is useful for integrating redmine with an external system which posts an issue.