Added catch-all logger and tweaked output formats.

Having a default catch-all logger will prevent '[Sat Feb 23 12:17:35 2013] [error] No handlers could be found for logger " <__name__>"' Apache log errors. Updated the 'simple' and 'verbose' format to something more useful in my opinion:

Before log 'simple: 
WARNING User 'support3' attempted to register with company 'KL Insight2' but it already exists

After log 'simple': 
WARNING accounts.forms forms.py@82: User 'support3' attempted to register with company 'KL Insight2' but it already exists

Before log 'verbose'
WARNING 2013-02-23 12:46:01,605 forms 22360 -1250423952 User 'support3' attempted to register with company 'KL Insight 2' but it already exists

After log 'verbose':
WARNING accounts.forms 2013-02-23 12:41:13,836 forms 22335 -1250423952 /srv/www/django/sample-site/src/django-project/accounts/forms.py@82: User 'support3' attempted to register with company 'KL Insight2' but it already exists

Thoughts?