Fix bin_spike_trains when using passed arguments.
Fix problems with numerical precision.
Increase default precision in st_convolve.
Let st_convolve return the correct units.
Correct documentation of st_convolve.
Inner product for spike trains.
Fixing sphinx warning.
Documentation for st_inner.
Spike train norm st_norm.
st_norm documentation.
Spike train norm distance.
Refactoring for better performance of st_norm_dist
st_norm_dist documentation.
Documentation fixes (typos etc).