Revisions 11.12

-Instead of using single values for neutral, supThresh, and proThresh,
It now collects 10 values for each in neutralY, proSamplesY, and
supSamplesY, and takes the mean for thresholds.
-For loops added in keyRelease functions to extract last 10 values added
to y_vals, and put them in the arrays mentioned above
-Commented out unused variables
-Deleted commented lines that I was clear were no longer needed
-deleted pronThresh and supiThresh variables. replaced them with
proThresh and supThresh which are the means of proSamplesY and
supSamplesY
-Deleted all the commented out junk at bottom of serialEvent.

ISSUES TO BE RESOLVED:
plotting isn't working for some reason