Feature: Set X11 WM_NAME attribute when fff is launched.

[lwilletts]

Good WM_NAME atoms are great for us scripters as it allows us to have different behaviours when changes occur. I personally have a window selection script based on dmenu that uses WM_CLASS and WM_NAME atoms to fuzzy find a window and focus it. Unfortunately fff does not set it's WM_NAME atom to something like fff when it launches.

A further out idea: the WM_NAME could change based on what directory fff is currently in e.g.

fff: ~/src