1.Resolved issue of including new line character every 76th character element, which causes the transport header to write invalid base64encoded value.
2.Resoved retriving contentType of the message when the server respond with 'content-type'



git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@182178 a5903396-d722-0410-b921-86c7d4935375