[FieldTrip] wavelet power units and (2/fsample) correction factor

[Burke Rosen]

Hello All,

I noticed with simulated input that ft_freqanalysis->ft_specest_wavelet 
yields powspctrm results that are scaled by the sampling rate of the 
input data.
The scaling factor appears to be (fsample/2).  Of course, multiplying by 
(2/fsample) corrects this.
Upon investigation I found that freqanalysis_mtmconvol (the predesessor 
to ft_specest_wavelet (?)) from fieldtrip-20080624 contains this 
correction factor on line 294.

1. What is this correction factor and why is it no longer applied?
2. Why is in not applied to the fourierspctrm output?
3. What, in general, are the output units of the 
ft_freqanalysis->ft_specest_wavelet?

Thank you,

Burke Rosen