organize data_cleaner as series of functions
complete forum code, add submission cleaner
rename LaunchDaySeq and DeadlineDaySeq to Day0 and DayEnd
fix bug where df.index.values, drop addl comps from analysis
calculate M4, M11, M12, M13, M21
declare Outputs in function docstrings, make visualizer to be an argument to clean1784()
fix argument parsing, fix 1 day missing from AvgMsgLength2WeekTrailing
calculate M7, M8, M9, M10
create and clean teams_ tables in data_cleaner