Added xinetd and ssh dependencies.

These packages are needed for deploying a VistA instance.
Deleting .pyc files in clean target.

These files are left behind after the build process.
Added scripts for deploying instances.

Based on scripts created by Christopher Edwards in the directory

                   VistA/Scripts/Install/GTM

This scripts are intended to be used after the installation of the
vista-foia package, to deploy specific running instances of VistA.
They create Linux users dedicated to the new running instance.
Build upon vista-foia base install.

The deployments will point to the VistA routines, and take advantage
of the gtmroutines environment variable to provide a path that search
for the routines in proper order (first the deployment and then the
base installation).

The database (globals) are simply copied from the base installation
into the deployment.