Making some final navigation tweaks

We are very close to completing the functionality we set out to implement within this iteration. The only thing left is to clean up our navigation just a little. You may have noticed that there are still some options available that allow the user to navigate to an entire listing of issues, or to create a new issue, outside of a project context. For the purposes of the TrackStar application, everything we do with issues should be within the context of a specific project. Earlier, we enforced this project context for creating a new issue (which is a good start), but we still need to make a few changes.

One thing that we notice is that the application still allows the user to navigate to a listing of all issues, across all projects. For example, on an Issue detail page, like http://localhost/trackstar/index.php?r=issue/view&id= 1, we see in the right column menu navigation there are the links List Issue and Manage Issue, corresponding to http://localhost...