Db

Simplified testing by removing boilerplate (setUp function), just subclass TestCase from __init__.

Added flask-testing for testing utilities

Added database module (sql-alchemy). The db location might not be ideal.

Added user model, views and templates for login, register, dashboard and logout

Added error pages,

Added utilities file for utilities
Why is this commented out? If it's due to lack of error propgatation with `DEBUG=True` you can initialize tests that require different settings with a custom app.