Allow arbitrary buffer length in real time
Merge pull request #1676 from mainakjas/buffer_length

Allow arbitrary buffer length in real time
FIX sfreq, ENH eog/misc can now take indices
FIX remove the max_samp ref

Everything should be based on the sfreq. The sfreq by definition now is
the max sampling freq for imported data.
COSMITS and FIX or statement, accidental deletion of n_samp
COSMITS and FIX n_samps
FIX reference to n_samples_per_record
UPDATE indexing and test with assert_allclose