CMIS-720: TCK: improved change token test

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1522964 13f79535-47bb-0310-9956-ffa450edef68
TCK: added path check

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1522966 13f79535-47bb-0310-9956-ffa450edef68