some styling changes for the better

- returned to the original layout
- nudged a few things around to accomodate the new features
- better display of information
- fixed assignee filtering

- [ ] create a minimal view
- [ ] add support for sass files in grunt
- [ ] add an easier way to distinguish the dominant files in the PR,
  ruby, javascript, python, c#, etc...
Merge pull request #15 from buck2769/cleanup

some styling changes for the better