Refactor appearance transitions. Also stop using CATransaction.
Refactor appearance transitions. Also stop using CATransaction.

ValCapri/ECSlidingViewController,romanovk/ECSlidingViewController,hrk-ys/ECSlidingViewController,gwynantj/ECSlidingViewController,gwynantj/ECSlidingViewController,romanovk/ECSlidingViewController,etsuyoshi/ecsliding,200895045/ECSlidingViewController,ysfox/ECSlidingViewController,demonotter/ECSlidingViewController,ernestopino/ECSlidingViewController,Wallapop/ECSlidingViewController,ECSlidingViewController/ECSlidingViewController,gwynantj/ECSlidingViewController,hrk-ys/ECSlidingViewController,demonotter/ECSlidingViewController,ernestopino/ECSlidingViewController,200895045/ECSlidingViewController,galileoguzman/ECSlidingViewController,ECSlidingViewController/ECSlidingViewController,ysfox/ECSlidingViewController,etsuyoshi/ecsliding,galileoguzman/ECSlidingViewController,kaizyu/ECSlidingViewController,ernestopino/ECSlidingViewController,gwynantj/ECSlidingViewController,ECSlidingViewController/ECSlidingViewController,DwightEverhart/ECSlidingViewController,kaizyu/ECSlidingViewController,romanovk/ECSlidingViewController,demonotter/ECSlidingViewController,hq804116393/ECSlidingViewController,DwightEverhart/ECSlidingViewController,kaizyu/ECSlidingViewController,DwightEverhart/ECSlidingViewController,chengkaizone/ECSlidingViewController,ernestopino/ECSlidingViewController,hrk-ys/ECSlidingViewController,etsuyoshi/ecsliding,ysfox/ECSlidingViewController,hq804116393/ECSlidingViewController,chengkaizone/ECSlidingViewController,ValCapri/ECSlidingViewController,hrk-ys/ECSlidingViewController,kaizyu/ECSlidingViewController,DwightEverhart/ECSlidingViewController,200895045/ECSlidingViewController,Wallapop/ECSlidingViewController,hq804116393/ECSlidingViewController,chengkaizone/ECSlidingViewController,ysfox/ECSlidingViewController,mckenfra/ECSlidingViewController,Wallapop/ECSlidingViewController,chengkaizone/ECSlidingViewController,ValCapri/ECSlidingViewController,etsuyoshi/ecsliding,200895045/ECSlidingViewController,galileoguzman/ECSlidingViewController,galileoguzman/ECSlidingViewController,demonotter/ECSlidingViewController,ECSlidingViewController/ECSlidingViewController,hq804116393/ECSlidingViewController,Wallapop/ECSlidingViewController