Modifying ant buildfile to also remote stage test packages.

Change-Id: Ibfea3cb0a4703718deb5457eb6d7e047d99011fa
Reviewed-on: http://review.couchbase.org/26779
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>