Added an Apache configuration file for the self-service interface.

Added an Apache configuration file for the self-service interface.
Modified the .spec file to allow the self-service interface to be installed
on a machine that already has the billing server on it, if you override the
conflict reported by yum.  Temporarily disabled the conflict in YaST.  Fixed
a long-standing bug where Makefile sets the ownership of files, causing "install"
commands to fail when building the RPMs.  This showed up on the SuSE install.
Simplified .spec code to install the init script and the Apache configuration
file.  Added some fix-ups for some of the remaining SuSE problems.  Included a
note on changes to make once the Freeside cache relocation code is fixed; this
cannot be done until a release of Freeside with the fix in it has been made, or
you'll get broken RPMs again.