CBQE-2306 fix direct url install in windows due to the
change in build name

Change-Id: I2dd282f7826d32a64076b9be08716011248d92ba
Reviewed-on: http://review.couchbase.org/38908
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ashvinder Singh <ashvinder@couchbase.com>