Example test.

- More will be done once more things are finalized.
Support for reverse proxy.

- All URLs will be properly rewritten to take account of this setting.
Upstream.
More fields to visualize.
Move the reverse proxy into util.
Correct the implementation of the navbar

- It was a coincidence that the blueprints we register shares the same
  name as the prefix, so this does not work if they are different.
- Created a new util to register the blueprint into an app while storing
  the relevant navbar information into that app.config.
- The jinja template then can use this info to render the template.
Integrate with the flask module in mtj.eve.tracker

- Also get that runner for free.