This change enables stuff like the following:
awful.widget.graph({}):set_color("red"):set_width(40):add_value(0.5)
Additionally, one can use the above directly in th widgets table.
This most likely doesn't break any existing configs and it adds a quite nice
syntax which can be used for in-place configuration of new widgets.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Julien Danjou <julien@danjou.info>