MB-11406: Revert *master* only to Erlang R14, for performance comparisons
Change-Id: Ide79c13a10ebabf405a1aae531d4ad4e441c6bc1
Reviewed-on: http://review.couchbase.org/38782
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>