[MINC-development] experiments with EBTKS and N3

[Andrew Janke]

> the error was in the interface between Mat<T> and underlying FFT routine in
> EBTKS. The library now seem to be producing the same result as R - I made a
> small test in
> https://github.com/BIC-MNI/EBTKS/blob/develop/testing/ebtks_test_fft.cc

ok.

> Before making a new release version, autoconf/automake stuff have to be
> updated. Or we can completely switch to cmake.

I'll update the autoconf/make when you push the changes across from
the develop branch.


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