Changelog for hsignal-0.1.0.5

0.1.0.1: first version 0.1.0.2: updated to reflect hmatrix 0.9.3.0 0.1.0.3: added Numeric.Signal.Multichannel 0.1.0.4: added Numeric.Signal.EEG 0.1.0.5: fixed stack overflow in loadBDF by making [Double] -> Vector Double step strict