Update .gitignore for win build artifacts
Update .gitignore for win build artifacts

Change-Id: Ibe640ebe0b28a4c1fea80954fdca18da7103aa1e
Reviewed-on: http://review.couchbase.org/34773
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

membase/moxi,couchbase/moxi,membase/moxi,couchbase/moxi,membase/moxi,membase/moxi,couchbase/moxi,membase/moxi,membase/moxi,couchbase/moxi,couchbase/moxi,couchbase/moxi