Make Command object ABCs
Make Command object ABCs

Make some of the Command object abstract classes and add some extra
documentation for some of the class methods.

soulchainer/qtile,kynikos/qtile,zordsdavini/qtile,kynikos/qtile,tych0/qtile,de-vri-es/qtile,flacjacket/qtile,rxcomm/qtile,flacjacket/qtile,de-vri-es/qtile,zordsdavini/qtile,ramnes/qtile,qtile/qtile,rxcomm/qtile,soulchainer/qtile,dequis/qtile,ramnes/qtile,cortesi/qtile,jdowner/qtile,frostidaho/qtile,frostidaho/qtile,qtile/qtile,dequis/qtile,jdowner/qtile,tych0/qtile,cortesi/qtile