ENH: add S transform to time_frequency

ENH: better tests

revert to initial naming + fix import init

module name

polish numpy

ENH: add sine_tapers + remove matlab test

more numpy + n_fft

add generalized ndim support + joblib

Add API tests

cosmits + update whats new + reference

remove matlab results matrix
ENH: improve memory + zero padding + address discussion
add back W *= W
more wrong casting
remove joblib fork + improve padding
ENH : simplify stockwell code
ENH : cleanup zero padding (not working yet on real data...)
wip: stockwell API + example
remove loope over channels
update tests to mne0.8
WIP expose gaussian width
FIX py3k error
checkpoint (please do not review)
trim tests and fix various bugs
ENH: FFT inversion test and alternative + better S implementation
ENH: speedup stockwell by factor 3-4, improve m-profile by factor 2
ENH : remove itc as complex, make copys between power and itc to avoid issues + cleanup docstrings
FIX : fix inverse stockwell + test
FIX findex issue + add test
cleanup