set_color nil on every awful.widget.graph

[Antenore Gatta]

I'm using awesome from git and all the awful.widget.graph were not working.

I found out that set_color return nil and this is because the bg_widget in the dust theme is set to

fg_widget = theme.bg_focus

theme.bg_focus is set later in the theme.lua, so fg_widget is nil when is initialized.

[Tim Yang]

fixed, thanks