Formulator DateTime validation bug

Hi Maciej,

 [...]
 >
 > Formulator creates DateTime object from form's input.
 > It catches some string exceptions to detect invalid date (time)
 > input. However, Zope's DateTime object raises
 > DateError or TimeError, not string exceptions, at least recent
 > versions of Zope (2.7+) do.
 > 
 > Two patches that fix this issue in two different
 > ways are attached to this message.
 >
 > I don't know whether DateError and TimeError are new in Zope.
 > It might be that DateTime did raise string exceptions in
 > earlier versions of Zope.

 Indeed this has changed in Zope 2.7; previous Zope versions raised some
string based exceptions.
 
 Thus I have takes the first patch and put it into the CVS. It will be
included in the next release, I think.
 Thanks a lot for the patches!

Cheers,
Clemens