ENH Brainvision for non-native acquisition

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> On 17 oct. 2014, at 18:14, Teon <notifications@github.com> wrote:
> 
> In mne/io/brainvision/brainvision.py:
> 
> >                       'range': 1.,
> > -                     'unit_mul': unit_mul,
> > +                     'unit_mul': 0.,
> sorry unit_mul is a legacy chan info entry. Matti says that it should remain 0, we had this problem with the scaled in mne_browse_raw. It doesn't get used anywhere.
> 
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