Adding addition test scenarios for HTTPEndpoint

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178348 a5903396-d722-0410-b921-86c7d4935375
Updating httpendpoint test artifact

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178349 a5903396-d722-0410-b921-86c7d4935375
updating synapse version in fastXSLT mediator

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178350 a5903396-d722-0410-b921-86c7d4935375