#655 Change 'projects' sidebar section into a tab

[Lee Worden]

It looks awkward when there's a red link in the sidebar on any page that doesn't have a project connected to it, for instance on the main page of http://lalashan.mcmaster.ca/theobio/worden. This is totally subjective, but I think it's less awkward when the "discussion" tab is red, which is the same kind of thing. Since they're so similar, I think it might be better to change the project sidebar section into a "project" tab next to the discussion tab. It can have a pulldown attached to it, to expose any additional project links and the "Import project files" link.