/*! Set up what decor should be shown on the window and what functions should
be allowed (ObClient::decorations and ObClient::functions).
This also updates the NET_WM_ALLOWED_ACTIONS hint.
/*! Set up what decor should be shown on the window and what functions should
be allowed (ObClient::decorations and ObClient::functions).
This also updates the NET_WM_ALLOWED_ACTIONS hint.