document synch XHR limitation

Author: arthurblake

README

@@ -13,7 +13,7 @@ example usage:
 var nodejava=require('./jabsorb');
 
 // create jabsorb (json-rpc) client for talking to Java
-var java = new nodejava.client("http://your-url-to-jabsorb-server");
+var java = new nodejava.client(["serverObjRef.serverMethodName", "exposedObject.methodCall", "etc.etc"], http://your-url-to-jabsorb-server");
 
 // call the remote Java server via json-rpc
 java.exposedObject.methodCall(
@@ -35,3 +35,7 @@ java.exposedObject.methodCall(
   }, argsGoHere, arg2, arg3, etc);
 
 
+limitations:
+At this time, only asychronous calls are supported (this is a limitation of the XHR port that is being used.)
+But you shouldn't be doing synchronous calls anyway, right?
+

jabsorb.js

@@ -1076,6 +1076,7 @@ var JSONRpcClient=(function()
     /* Unmarshall the response */
     if (status != 200)
     {
+      console.log ('code: ' + status + ' message: ' + statusText);
       throw new JSONRpcClient.Exception({ code: status, message: statusText });
     }
     return this.unmarshallResponse(data);