CBQE-2269 add windows registry for build 3.0.0
for automatic installation on windows.

Change-Id: I354c8dedf23173847028227613deb6705f5ffaa5
Reviewed-on: http://review.couchbase.org/37293
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Thuan Nguyen <soccon@gmail.com>