CBD-595 load erlang from erts-5.9* instead of erts-5.8*

depends on http://review.membase.org/#/c/23789/

Change-Id: I93ade66872ac86ae62386cbea7b87e8a3e018b9f
Reviewed-on: http://review.couchbase.org/23956
Tested-by: Farshid Ghods <farshid@couchbase.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>