MB-100: handle "Failed to start cs" in 2.0.0 -MB-7288

 skip error '* Failed to start couchbase-server' for 1.* & 2.0.0 builds(MB-7288)
 fix in 2.0.1 branch Change-Id: I850ad9424e295bbbb79ede701495b018b5dfbd51

Change-Id: I7836e2222f9d07d71cb142f4282fb2145339dc9c
Reviewed-on: http://review.couchbase.org/24051
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>