Adding deserializer for HTTP endpoint

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@178407 a5903396-d722-0410-b921-86c7d4935375
Changing the icon of HTTP endpoint in tool palette

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@178408 a5903396-d722-0410-b921-86c7d4935375