/// <summary>
 /// Waits until all of the role instances are running in a deployment before releasing
 /// </summary>
 /// <returns></returns>
 IServiceCompleteActivity IRoleReference.WaitUntilAllRoleInstancesAreRunning()
 {
     IRoleReference roleReference = new RoleReference(this);
     return roleReference.WaitUntilAllRoleInstancesAreRunning();
 }