Log Message:
p5-Math-Utils: update to 1.14.

1.14
	10 Apr 2020
	- Add the function softmax(). Currently in the :utility tag
	  group, which may be too generic. We'll see what else gets
	  added later and adjust the tagging then.
	- New functions uniform_scaling(), and uniform_01scaling(),
	  contributed by Gene Boggs (GENE).
	- Typo found by Miguel Prz (NICEPERL) fixed.