Shifted Database connection variables out into a configuration file

Shifted Database connection variables out into a configuration file
The permissions on this config file should also be strict, since they contain
the database password.
At a minimum, the apache user needs to be able to read it, as well as any other user that runs circ.
I would suggest ownership of www-data.libadmins with no access to others.
libadmins contain all users that use circ

destined for v1.08