Un-deploy through non active GSM throws Exception although successful

(1) Un-deploy through non active GSM throws Exception although successful. The exception is caused by un-exporting of the DeployAdmin proxy being used to un-deploy. This proxy was gained as part of a redirect action from the non-active GSM to active GSM.

Fix - ignore exception when channel is closed due to unexport

(2) Un-deploy through non-active secured GSM. Until now threw AuthenticationException indicating user is not logged in. This is misleading since it is caused by the redirect of the operation from a non-active GSM to an active one. The proxy is then 'not trusted' and this exception is thrown.

Fix - throw OperationalStringException indicating of the limitation.