acceptance: skip flaky TestClusterRecovery.
acceptance: skip flaky TestClusterRecovery.

This test fails about half the time on TeamCity.

maxlang/cockroach,glycerine/cockroach,vaibhavarora/cockroach,glycerine/cockroach,petermattis/cockroach,paperstreet/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,glycerine/cockroach,veteranlu/cockroach,paperstreet/cockroach,veteranlu/cockroach,petermattis/cockroach,maxlang/cockroach,cockroachdb/cockroach,veteranlu/cockroach,petermattis/cockroach,maxlang/cockroach,maxlang/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,glycerine/cockroach,petermattis/cockroach,veteranlu/cockroach,petermattis/cockroach,paperstreet/cockroach,petermattis/cockroach,vaibhavarora/cockroach,paperstreet/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,veteranlu/cockroach,glycerine/cockroach,glycerine/cockroach,maxlang/cockroach,maxlang/cockroach,paperstreet/cockroach,petermattis/cockroach,cockroachdb/cockroach,veteranlu/cockroach,petermattis/cockroach,maxlang/cockroach,glycerine/cockroach,veteranlu/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,cockroachdb/cockroach,veteranlu/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,paperstreet/cockroach,maxlang/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,glycerine/cockroach