don't reset on Enter

Fltk/manipWindow.cpp

@@ -82,7 +82,7 @@ manipWindow::manipWindow(int deltaFontSize)
   }
 
   {
-    Fl_Return_Button *o = new Fl_Return_Button
+    Fl_Button *o = new Fl_Button
       (width - BB - WB, height - BH - WB, BB, BH, "Reset");
     o->callback(status_xyz1p_cb, (void *)"reset");
   }