Two new useful commands for manage.py. `m urls` lists all URLs (like `rake routes` in Rails). `m clean` gets rid of .pyc files.

- Add the UTF-8 marker to files without it.
- Fix some hanging indents.
- Change ''' into """ in docstrings.
- Enforce two blank line rule.

See mitsuhiko/flask#1135

Views are all in located in the modules package, which contains blueprints
Also, use alert-warning instead of alert-error for Bootstrap3

Also add a test command to manage.py