Merge pull request #49 from ChilloutCharles/artifact-detection-tuning

update filters and change to tanh log ratio

update bandpass filter again

better filtering

remove debug print update comments

mean and std based artifact detect

print debug statement

change period ratio and time window

Merge pull request #46 from ChilloutCharles/logic-improve

change from median to rolling average difference

revert to 2 second window

add no data check

add local env gitignore

rms artifact threshold

ml_action HV