Octoprint (#804)

* Octoprint progress dialog

* Fix curl version on Windows

xs/xsp/Utils_OctoPrint.xsp

@@ -9,5 +9,5 @@
     OctoPrint(DynamicPrintConfig *config);
     ~OctoPrint();
 
-    void send_gcode(int windowId, int completeEvt, int errorEvt, std::string filename, bool print = false) const;
+    bool send_gcode(std::string filename, bool print = false) const;
 };