Adding wtforms to requires.

Since wtforms is used, it should be in requires.
* Sharoon Thomas: " Re: [nereid] Adding wtforms to requires. (#226)" (Fri, 31
  Oct 2014 07:01:20 -0700):

> > @@ -125,6 +125,7 @@ def run(self):
> >      'speaklater',
> >      'Flask-Babel>=0.9',
> >      'Flask-Login',
> > +    'wtforms',
> 
> Agree, but the tricky issue here is we don't (and should not) directly depend
> on wtforms, but on flask-wtf. In addition, the version of wtforms should be
> defined by flask-wtf as the features required for flask-wtf matters more.

I see. Aren't we safe to declare an unversioned requires and let flask-wtf
itself handle the versions, if necessary?

Origin of this issue: just installing nereid-cms is missing wtforms.


-- 

    Mathias Behrle
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