[ASVideoNode] Ensure that observer methods don't observer all other ASVideoNode objects
[ASVideoNode] Ensure that observer methods don't observer all other ASVideoNode objects

tomizimobile/AsyncDisplayKit,Xinchi/AsyncDisplayKit,gazreese/AsyncDisplayKit,george-gw/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,romyilano/AsyncDisplayKit,george-gw/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,gazreese/AsyncDisplayKit,lappp9/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,JetZou/AsyncDisplayKit,Xinchi/AsyncDisplayKit,george-gw/AsyncDisplayKit,flovouin/AsyncDisplayKit,bimawa/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,harryworld/AsyncDisplayKit,romyilano/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,harryworld/AsyncDisplayKit,maicki/AsyncDisplayKit,levi/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,yufenglv/AsyncDisplayKit,lappp9/AsyncDisplayKit,samhsiung/AsyncDisplayKit,JetZou/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,JetZou/AsyncDisplayKit,Xinchi/AsyncDisplayKit,facebook/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit,romyilano/AsyncDisplayKit,rmls/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,gazreese/AsyncDisplayKit,levi/AsyncDisplayKit,gazreese/AsyncDisplayKit,romyilano/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,bimawa/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,Xinchi/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,facebook/AsyncDisplayKit,rmls/AsyncDisplayKit,yufenglv/AsyncDisplayKit,JetZou/AsyncDisplayKit,smyrgl/AsyncDisplayKit,facebook/AsyncDisplayKit,rmls/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,bimawa/AsyncDisplayKit,rmls/AsyncDisplayKit,smyrgl/AsyncDisplayKit,Xinchi/AsyncDisplayKit,levi/AsyncDisplayKit,george-gw/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,maicki/AsyncDisplayKit,yufenglv/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,levi/AsyncDisplayKit,flovouin/AsyncDisplayKit,harryworld/AsyncDisplayKit,bimawa/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,flovouin/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,JetZou/AsyncDisplayKit,maicki/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,rmls/AsyncDisplayKit,smyrgl/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,samhsiung/AsyncDisplayKit,yufenglv/AsyncDisplayKit,lappp9/AsyncDisplayKit,facebook/AsyncDisplayKit,harryworld/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,flovouin/AsyncDisplayKit,samhsiung/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,levi/AsyncDisplayKit,harryworld/AsyncDisplayKit,lappp9/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,smyrgl/AsyncDisplayKit,flovouin/AsyncDisplayKit,samhsiung/AsyncDisplayKit,maicki/AsyncDisplayKit,yufenglv/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit