Implement reuse of description and signature.
Implement reuse of description and signature.

bbockelm/glideinWMS,bbockelm/glideinWMS,holzman/glideinwms-old,bbockelm/glideinWMS,holzman/glideinwms-old,bbockelm/glideinWMS,holzman/glideinwms-old