[E-devel] [Patch] E17/comp: add _NET_WM_CM_Sn checking code

[Gwanglim L. <gl7...@sa...>]

Dear all,

I've added checking code to detect another compositor that is already running.

And I've also removed unnecessory set/unset code for _NET_WM_CM_S#.
Please review this patch.

Thanks.