CBD-853:  set ep-engine revision to  35e248148abc810ab67715e86417191cd73e39dd

Change-Id: I03129660da1cfa3fc365e3b2923429e8ba9581e1
Reviewed-on: http://review.couchbase.org/24844
Tested-by: Philip Labee <philip@couchbase.com>
Reviewed-by: Philip Labee <philip@couchbase.com>