Fix selection behaviour of histograms#2711

Merged

jonmmease merged 5 commits intoplotly:masterfrom

meffmadd:histogram-selection

Sep 3, 2020

Commits on Aug 17, 2020

fixes selection behaviour of histogram plots
Matthias Matt
committed
non ES6 reduce and every
Matthias Matt
committed
moved variable assignemnt of flatPointIndex inside of if statement
Matthias Matt
committed
removed line at the end of the last if statement
Matthias Matt
committed
sorting of point indices
Matthias Matt
committed