Actual fix for systray icons...
Actual fix for systray icons...

And reverted the previous fix. It did work for sonata (which uses
eggtrayicon) for some reason I still can't understand, but the real bug
was that we weren't sending the MANAGER client message to the *root*
window. Which is why I have no idea why sonata was fixed before.

This one fixes most gtk/qt applications, including sonata, but some
applications might still fail. One example is "scim", which I have been
trying to fix but couldn't, yet.

If anyone finds more applications with tray icons that disappear after
restart, I'd be interested in fixing them.

de-vri-es/qtile,kseistrup/qtile,cortesi/qtile,xplv/qtile,EndPointCorp/qtile,EndPointCorp/qtile,farebord/qtile,kynikos/qtile,jdowner/qtile,kopchik/qtile,kiniou/qtile,apinsard/qtile,ramnes/qtile,dequis/qtile,rxcomm/qtile,soulchainer/qtile,aniruddhkanojia/qtile,kopchik/qtile,zordsdavini/qtile,nxnfufunezn/qtile,dequis/qtile,andrewyoung1991/qtile,rxcomm/qtile,encukou/qtile,StephenBarnes/qtile,encukou/qtile,tych0/qtile,ramnes/qtile,himaaaatti/qtile,nxnfufunezn/qtile,aniruddhkanojia/qtile,cortesi/qtile,qtile/qtile,flacjacket/qtile,kseistrup/qtile,w1ndy/qtile,de-vri-es/qtile,w1ndy/qtile,andrewyoung1991/qtile,frostidaho/qtile,kynikos/qtile,xplv/qtile,soulchainer/qtile,qtile/qtile,himaaaatti/qtile,apinsard/qtile,tych0/qtile,StephenBarnes/qtile,flacjacket/qtile,farebord/qtile,kiniou/qtile,zordsdavini/qtile,frostidaho/qtile,jdowner/qtile