Site Redirection Upon Subscribe & Unsubscribe

[fillibar]

When a user subscribes or unsubscribes, the appear to be getting directed to the main website/STUB configured in the settings for the project. However, this does not appear to work properly if Traq is installed in a subfolder. For example, if your domain is "yourdomain.notreally" and the URL for the project ProjectA is "yourdomain.notreally/Traq/ProjectA" a stub of "ProjectA" will end up redirecting the user to "yourdomain.notreally/projecta", which likely does not exist.

So my idea is multi-purpose:

1. Have the redirect go to a dynamic location based on the location of Traq, not the domain itself, by default.
2. Allow the STUB to be a full URL that can be configured, and not some dynamic.
3. Allow separate full URLs for Subscribe and Unsubscribe activity. In case of Subscribe, the admin might want the page to redirect the newly subscribed user to a beginners page (possibly in a wiki). In the case of Unsubscribe, the admin might want to direct them to a "sad to see you go" page or survey about their unsubscribing.