Added tooltips (title=) to newforms.widgets.Select

[tonnzor <tonn81@…>]

It is useful to have tooltips in dropdown list.

So I created a SelectWTitle widget, that processes third choice's item value as an option title. I also fixed newforms.fields.py to process three-values items.

I'm not sure in widget's name - maybe there's a better name for it.

Usage example:

>>> AgentForm(newforms.Form):
   record_type = forms.ChoiceField(widget=SelectWTitle, choices=[('agname', 'Agent name', 'Name of the agent that makes the action')])

>>> print AgentForm()

<select>
   <option value='agname' title='Name of the agent that makes the action'>Agent name</option>
</select>

[Chris Beaven]

Not really my cup of tea, but I'll leave it to core devs to decide.

[Malcolm Tredinnick]

Not worth including in core. Best practice is that select names should be descriptive enough on their own. You might want to post it to Django snippets, though, for people who would find this useful.