CBQE-2295 add kill erlang process after uninstall in windows
.  This code will be remove when bug MB-11328 is fixed in 3.0.1

Change-Id: I636b5000c48a8c1012b859bf45dc32ed95e47fb3
Reviewed-on: http://review.couchbase.org/38597
Reviewed-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Chris Hillery <ceej@couchbase.com>