ENH: Hash dataset downloads
FIX: Py3k fixes
FIX: Non-deprecated fetching
FIX: Only import when necessary
ENH: Better utils testing
typo
FIX: Cosmetic fixes
Merge pull request #1594 from Eric89GXL/hash-dl

ENH: Hash dataset downloads
conditionals for fft / iir in filter.p
add failing test
flakes
Merge pull request #1596 from dengemann/filter_fixes2

ENH: conditionals for fft / iir in filter.py
FIX: typo in report causing by ecg channel names
FIX bug related to loading datablocks.

datablocks can have a length different than the sampling frequency. The current code assumes that the sampling frequency and the number of samples per block are the same. This turns out to be a bad assumption.
FIX indexing error.

chan_data is 1d so the index should be 0.
FIX stim channel interpolation
ADD padding and PEP8