Added code to ignore the optional charset as the key to retrieve the requestBodyMapHandler. For example the same handler will be found and used when the Content-Type header is set as:
application/json
application/json;charset=utf-8
application/json;charset=UTF-8



git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1643184 13f79535-47bb-0310-9956-ffa450edef68