adding refreshApplicationAccessToken function test

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@183073 a5903396-d722-0410-b921-86c7d4935375
fixed connector build break

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@183077 a5903396-d722-0410-b921-86c7d4935375