Update for easing function names regexp
Update for easing function names regexp

A tiny update that fixes the bug when trying to apply easing function on attribute animation. Current regexp works fine when you use something like "left[outCubic]: 50px" but fails on "@data-num[outCubic]: 100".
dszls/skrollr,bspiritxp/skrollr,kavallo/skrollr,cwj10/skrollr,NancyFan/skrollr,SanhNX/skrollr,Prinzhorn/skrollr,dshreyas11/skrollr,BenHeubl/skrollr,unxsist/skrollr,Kalmani/skrollr,jianxiansining/skrollr,10by10pixel/skrollr,antoniocicerone/skrollr,VladimirGavrilov/skrollr,alvarotrigo/skrollr,GerHobbelt/skrollr,fengyiyi/skrollr,grigorkh/skrollr,danieldietrich/skrollr,10by10pixel/skrollr,divisionparzero/skrollr,mtgrunt/skrollr,fxck/skrollr,2947721120/skrollr,danieldietrich/skrollr,liqk2014/skrollr,garylgh/skrollr,mikesoops/skrollr,dszls/skrollr,leendx/skrollr,Kalmani/skrollr,boregan/skrollr,jeff235255/skrollr,unxsist/skrollr,jeff235255/skrollr,matthewgoodwin/skrollr,2947721120/skrollr,utkarshx/skrollr,antoniocicerone/skrollr,mikesoops/skrollr,piyushkhemka/skrollr,lauffenp/skrollr,mumer92/skrollr,cwj10/skrollr,dommuthu/skrollr,SanhNX/skrollr,thenaughtychild/skrollr,jianxiansining/skrollr,fengyiyi/skrollr,MassImpact/skrollr,thenaughtychild/skrollr,lauffenp/skrollr,xiamiLi/skrollr,udhayam/skrollr,Bilyachenko/skrollr,bspiritxp/skrollr,RohithKP/skrollr,divisionparzero/skrollr,garylgh/skrollr,Prinzhorn/skrollr,BenHeubl/skrollr,grigorkh/skrollr,fxck/skrollr,matthewgoodwin/skrollr,liqk2014/skrollr,mtgrunt/skrollr,winglua/skrollr,leonardykris/skrollr,leonardykris/skrollr,VladimirGavrilov/skrollr,AlphaStaxLLC/skrollr,winglua/skrollr,MassImpact/skrollr,leendx/skrollr,kavallo/skrollr,mumer92/skrollr,utkarshx/skrollr,dshreyas11/skrollr,AlphaStaxLLC/skrollr,Bilyachenko/skrollr,dommuthu/skrollr,alvarotrigo/skrollr,GerHobbelt/skrollr,udhayam/skrollr,NancyFan/skrollr,RohithKP/skrollr,boregan/skrollr,piyushkhemka/skrollr,xiamiLi/skrollr