fireEvent + graflow uses new-style fireEvent

graflow_examples/test4.5.html

@@ -56,10 +56,10 @@
                 grflw4.setAttribute('tension', document.querySelector('input[data-id="icmp"]').value)
                 grflw4.setAttribute('align', document.querySelector('select[name="align"]').value)
                 grflw4.setAttribute('wiretype', document.querySelector('select[name="wiretype"]').value)                
-                grflw4.addEventListener('subflowLoaded',
+                grflw4.addEventListener('bz:graflow:subflowLoaded',
                     (evt) => { grflw4 = evt.detail.subflow }
                 )
-                grflw4.addEventListener('subflowExited',
+                grflw4.addEventListener('bz:graflow:subflowExited',
                     (evt) => { grflw4 = evt.target }
                 )
                 document.querySelector('[data-trigger="onAutoplace4H"]').addEventListener('click',