Added fft timeseries.
Updated docstring.
Added better docstring.
statisticalIneffiency() calls fft version when possible.
Fix docstring in timeseries
Merge remote-tracking branch 'upstream/nk' into fft
Added numexpr and statsmodels to requirements.
Merge remote-tracking branch 'upstream/nk' into fft
Merge remote-tracking branch 'upstream/nk' into fft
Revert / cleanup some of FFT timeseries stuff.
Cleanup of FFT
Fixed import issue.
Added a few more tests.
Minor fix to docstring.
Minor fix to docstring.
Minor fix to docstring.
Merge remote-tracking branch 'upstream/nk' into fft2
Don't use doctests on things that rely on optional imports, breaks travis doctests.
Merge pull request #119 from kyleabeauchamp/fft2

[WIP] FFT based equilibration detection.