Too many emails sent to reviewers, when news or events content item published.

[andycat]

With the new code in 0.2.2-final for putting news and events into 'pending' state automatically, we have 4 emails per each new content item being published. This is wrong, and confusing, since the url inside the email is pointing to temporary places for the event.

the code in question: http://dev.plone.org/collective/changeset/74055

[andycat]

http://dev.plone.org/collective/changeset/78465

reduces the number of state transitions to one, hence one call of the script 'inform_reviewers.py' is called, and hence only one email is sent out. BUT this is still called before the real end of the object's setup - ie the email contains the wrong URL, the url from before the item is properly renamed.