Update podspec to beta 3
Update podspec to beta 3

romyilano/AsyncDisplayKit,flovouin/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit,romyilano/AsyncDisplayKit,rmls/AsyncDisplayKit,lappp9/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,lappp9/AsyncDisplayKit,harryworld/AsyncDisplayKit,rmls/AsyncDisplayKit,rmls/AsyncDisplayKit,flovouin/AsyncDisplayKit,harryworld/AsyncDisplayKit,rmls/AsyncDisplayKit,lappp9/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,JetZou/AsyncDisplayKit,JetZou/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,romyilano/AsyncDisplayKit,harryworld/AsyncDisplayKit,flovouin/AsyncDisplayKit,romyilano/AsyncDisplayKit,JetZou/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,flovouin/AsyncDisplayKit,maicki/AsyncDisplayKit,maicki/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,harryworld/AsyncDisplayKit,JetZou/AsyncDisplayKit,maicki/AsyncDisplayKit,flovouin/AsyncDisplayKit,JetZou/AsyncDisplayKit,lappp9/AsyncDisplayKit,rmls/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,harryworld/AsyncDisplayKit,tomizimobile/AsyncDisplayKit