Flake8 pass
Add list of trackers to project details page

This is kind of ugly right now partially because the data is a mess and
partially because it needs some thought regarding how it'll be used and
therefore how to focus the ui/ux.
Add bug details page; add breadcrumbs

* adds a bug details page which is useful for tracker bugs since you can
  see all the things outstanding; this could use some work
* adds breadscrumbs to top of most pages so it's easier to navigate the
  hierarchy and remember where you are
Merge bugid and details columsn in project details