Retabbed traces.html

The tabbing was causing problems with my editor...
Improved the interface for the traces. Currently only the frontend

This will allow for the development of the simulation-run aspect, making it easier to view the traces you're interested in.
Traces now largely there

There are a few minor changes that will need to be made. For starters none of the details for the simulation are passed through to the template.
Secondly, there is currently no way of setting the new simulation name.

Thirdly, the delete button isn't associated with a URL and 404s.