Attach handlers to django_auth_ldap
Attach handlers to django_auth_ldap

To assist with debugging LDAP authentication, associate the 'django_auth_ldap'
handler with the 'tower_warnings' logger.  To enable debugging, set the
following in a tower settings file:

> LOGGING['handlers']['tower_warnings']['level'] =  'DEBUG'

Also uses the proper `filename` for the tower_warnings log file.

snahelou/awx,wwitzel3/awx,wwitzel3/awx,snahelou/awx,wwitzel3/awx,wwitzel3/awx,snahelou/awx,snahelou/awx