register callbacks to events
register callbacks to events

    >>> from acrylamid.helpers import event
    >>> def bla(path):
            print path
    >>> event.register(bla, to=['create', 'changed'])

Now when a view calls event.create('foo') bla prints 'foo'. You can hook
into create, changed, skip, identical and removed.

markvl/acrylamid,markvl/acrylamid,markvl/acrylamid