code review.
Fixed the problem that was preventing us from associating a PID file
with the ATS service.
Stopped deleting the "casaatsd" user during RPM un-install to avoid
problems with orphaned files.
Added code to protect against zero length passwords in the Pwd
authentication mechanism.
the users created during RPM install to avoid problems created with
files left around that were created by the users.
Also removed un-necessary BuildRequire dependency on glade-sharp from
CASA_auth_token_server package.
Also fixed "ReconfigureInterval=0" issue and added the ability
to search using multiple search roots configured on a per-realm
basis in the iaRealms file.
