It does not provide much value. The version number is already known to
ldoc globally in the "description" variable.
Signed-off-by: Uli Schlachter <psychon@znc.in>
There used to be `awful.client.data.focus`, which was moved to
`awful.client.focus.history.internal`.
While the former was accessible, the latter is not.
This is useful to get a list of most recently focused clients, without
having to hook into the signal yourself.
Closes https://github.com/awesomeWM/awesome/issues/841.