Feature request: focus follows mouse

[timvink]

Recently looking into alternative macOS window managers, I looking into KWM and Amethyst. "Focus follows mouse" could be a cool feature for ShiftIt:

One of the best feature is Raise-On-Hover, with this you don’t need to click in a window to start typing in it. It saves hundred of clicks each day, for real. (https://medium.com/@geekuillaume/a-tweaker-guide-to-osx-personalization-e3f2eef0eebc)

Perhaps consider the feature for a next release?