Don't send token if null

src/net/i2p/itoopie/i2pcontrol/JSONRPC2Interface.java

@@ -90,6 +90,7 @@ public class JSONRPC2Interface {
 			throw new UnrecoverableFailedRequestException(); // Max retries reached. Throw exception.
 		}
 		HashMap outParams = (HashMap) req.getParams();
+                if (token != null)
 		    outParams.put("Token", token); // Add authentication token
 		req.setParams(outParams);