Update migrate.py

Order of the tickets in the Gitlab import is now the same as in Trac, tickets have the same ID.

Author: mtlife

Diff for: migrate.py

@@ -123,7 +123,7 @@ def get_dest_milestone_id(dest_project_id,milestone_name):
 
     get_all_tickets = xmlrpclib.MultiCall(source)
 
-    for ticket in source.ticket.query("max=0"):
+    for ticket in source.ticket.query("max=0&order=id&asc=1"):
         get_all_tickets.ticket.get(ticket)