Add automatic interaction to color editor range handles
See the excellent writeup on the new Range Handles in the Color Opacity Editor in the 5.8.0 release notes.
We would like optionally to allow the range handles, when moved, to automatically update the color legend. In other words, don't change the min and max (i.e., like you dropped the range handle), but rather interactively update the color map range. Hmmm... I'm undecided whether to default on or off - either is OK. Additionally, leave the current functionality (grab range handles, move them, drop them, reset min or max). It is wonderful.
Letting Kitware Europe set milestone and labels.