breaking change: doErrorPage moved to wtvshared.doErrorPage

- but I fixed flashrom error handling..
- added a passthrough for old scripts

zefie_wtvp_minisrv/ServiceVault/wtv-flashrom/get-lc2-page.js

@@ -4,7 +4,7 @@ var wtvflashrom;
 request_is_async = true;
 
 if (!request_headers.query.path) {
-	var errpage = doErrorPage(400);
+	var errpage = wtvshared.doErrorPage(400);
 	headers = errpage[0];
 	data = errpage[1];
 } else {	
@@ -146,7 +146,7 @@ ${flashrom_info.message}
 </body>
 </html>`;
 	} else {
-		var errpage = doErrorPage(400)
+		var errpage = wtvshared.doErrorPage(400)
 		headers = errpage[0];
 		data = errpage[1];
     }