Fix for Host IP in NamedVirtualHost setup

The servers use an IP Address for the host in the configuration details,
but we're running a NamedVirtualHost setup, so we need to have a
resolution for the curl call done by the index.php during login.

Pulling ServerName as the authoritive configuration for host name.
Merge branch 'master' of github.com:EJEHardenberg/GreenUp