[Zope-CMF] [dev] exceptions (small post-permissiongeddon proposal)

[yuppie]

Hi!


1.) CMFCoreExceptions.py was never released. While it is nice to warn 
people using cvs HEAD that this module was renamed, I'd like to remove 
it completely before CMF 1.5 beta is released.

2.) Some of the exceptions defined in CMFCore/exceptions.py are only 
used in CMFDefault or packages depending on CMFDefault. I'd like to move 
these exceptions to CMFDefault.

3.) Some exceptions like DiscussionNotAllowed, MetadataError or defined 
in the related module. I'd like to move them into exceptions.py.


If there are no objections or better ideas I'll make these changes in 
cvs HEAD.

Cheers,
	Yuppie