neuropsychology/NeuroKit: 0.0.40

What's New 0.0.40 (#322) @DominiqueMakowski [Fix] Code Climate (#346) @Tam-Pham [Feature] EEG microstates analysis (basics) (#331) @DominiqueMakowski [Fix] #344 with corresponding test (#345) @awwong1 [Feature] add new ECG peak detection method (#343) @elaineteo2000 [Feature] Dynamic RSA (#336) @Tam-Pham [Feature] Add new respiration rate methods (#341) @Tam-Pham [Features] PPG preprocessing (#339) @elaineteo2000 [feature] Time-frequency methods (#327) @Tam-Pham [Fix] corrected 'heart' with 'respiratory' in docstring (#337) @1110sillabo [Feature] New EDA and EMG peak and onset detection methods (#325) @zen-juen respiration sampling rate issue (#334) @minsooyeo [Improvement] Refactor all printed NeuroKit warnings into warning control (#320) @awwong1 add new emg onset detection method (#333) @elaineteo2000 Thanks to @1110sillabo, @DominiqueMakowski, @Tam-Pham, @awwong1, @elaineteo2000, @minsooyeo and @zen-jue