CBQE-0 add kill epmd process in windows

Change-Id: Id63fe2e3a3ba80d278448fe262ed30edd50df20f
Reviewed-on: http://review.couchbase.org/38394
Tested-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>