cmd/signer: minor change in json format

cmd/signer/README.md

@@ -434,4 +434,8 @@ invoking methods with the following info:
   * Address of API (http/ipc)
     * This makes it posible for the UI to use the api for creating transactions
   * List of known accounts
-  
+
+* The signer should pass the `Origin` header as call-info to the UI. As of right now, the way that info about the request is
+put together is a bit of a hack into the http server. This could probably be greatly improved
+
+* The signer

cmd/signer/api.go

@@ -62,8 +62,8 @@ type (
 	// SignTxResponse result from SignTxRequest
 	SignTxResponse struct {
 		//The UI may make changes to the TX
-		Transaction TransactionArg
-		From        common.Address
+		Transaction TransactionArg `json:"transaction"`
+		From        common.Address `json:"fromaccount"`
 		Approved    bool   `json:"approved"`
 		Password    string `json:"password"`
 	}