Try to fix the WEBUI

1.  Serialize the return value of /wm/core/controller/switches/json
2.  Serialize the OFDescStatReply
3.  Serialize THE OFAggregateStatREply
4.  Modify the webui to make it fit the current restapi format

About the return value of " /wm/core/controller/switches/json', since the WEBUI need to knows the switch's DPID, InetAddress and connectedSinceTime, My temporary solution is use a wrapper to contains those three fields, If user wants to know more information about the switch, we need to modify those code again, I think the better solution is we use IOFSwitch as the resturn type since it contains all switch information and we already have a IOFSerializer. Do you have any idea about this ?


Thanks.