DERBY-6401 Create a test option to stop running Junit tests after first failure or error
Adds test option. If run with  -Dderby.tests.stopAfterFirstFail=true tests will stop after first failure or error



git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1539729 13f79535-47bb-0310-9956-ffa450edef68