added the gpg signer stub for release time.
added the gpg signer stub for release time.

tingletech/rexster-tomcat,tingletech/rexster-tomcat,alszeb/rexster,tomgullo/rexster,alszeb/rexster,tomgullo/rexster,tomgullo/rexster,tingletech/rexster-tomcat,alszeb/rexster,alszeb/rexster,tomgullo/rexster