hammerspoon: treat iTerm windows especially while window watching
hammerspoon: treat iTerm windows especially while window watching

This is the missing complement to 10b93d0, necessary since I started
using iTerm without title bars.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent