Triggers from development version to stop working

[Ulrik Sverdrup <ulrik sverdrup gmail com>]

If you never saved triggers from a development version of Kupfer,
before pandoras-box-1, nothing changes.

Otherwise *it's possible* that you need to forward-port trigger
objects in your configuration before Kupfer updates master to safer
serialization code.

The patch is here
http://github.com/engla/kupfer/commit/45683cb133f68a4463f6574a428f53a6b9905192

ulrik