build ep-engine from trond

Change-Id: I32c4b4ad2cf40d369843b7bd275a317e36f4db4f
Reviewed-on: http://review.couchbase.org/29052
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>