bootstrap and output updates

Modified / cleaned multiprocess bootstrap code up quite a bit and added it as a separate file.

Changes to spectral.py break existing code using this module since it now returns a dictionary rather than a tuple.

Also included a few functions to generate and check parameters going into each of the spectral analysis functions, as well those going into the bootstrap functions.
They get auto generated in params now based on nfft and Fs.
On Aug 26, 2014 2:47 PM, "Hari Bharadwaj" <notifications@github.com> wrote:

> In anlffr/spectral.py:
>
> >
> > -    f = f[ind]
> > -    return (pspec, f)
> > +    return params
>
> What happened to the frequency vector outputs? Am I missing anything?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/haribharadwaj/ANLffr/pull/3/files#r16733628>.
>