Fix debug=true variable on deploy

We need to add the debug variable to true in the deployment settings as seen here:

Line 5 in 85ed2a8

DEBUG = True

Because if not, the deploy on heroku breaks, returning a 500 response for the login page.

This should be fixed, since having debug on deployment isn't really necessary.

PD: Maybe it's caused from this line??

Line 14 in d3301d3

os.environ.get('DJANGO_SETTINGS_MODULE', 'numberFilter.settings.dev')