CBLT-283:  instead of CBFS, packages are now stored on
           s3://packages.northscale.com/latestbuilds/mobile/${VERSION}

Change-Id: I1c6f6a1d816c3628cd6359de9051b381eee9622f
Reviewed-on: http://review.couchbase.org/36753
Reviewed-by: Traun Leyden <tleyden@couchbase.com>
Tested-by: Traun Leyden <tleyden@couchbase.com>