updated backbone adaptor
updated backbone adaptor

heavyk/ractive,Rich-Harris/ractive,heavyk/ractive,ractivejs/ractive,dyx/ractive,aliprogrammer69/ractive,ractivejs/ractive,aliprogrammer69/ractive,ractivejs/ractive,heavyk/ractive,ndimas/ractive,squaredup/ractive,marcalexiei/ractive,marcalexiei/ractive,ndimas/ractive,JonDum/ractive,magicdawn/ractive,thomsbg/ractive,JonDum/ractive,cgvarela/ractive,Rich-Harris/ractive,marcalexiei/ractive,npmcomponent/RactiveJS-Ractive,thomsbg/ractive,ISNIT0/ractive,ISNIT0/ractive,dyx/ractive,ISNIT0/ractive,magicdawn/ractive,Rich-Harris/ractive,p0lax/ractive,pingjiang/ractive,magicdawn/ractive,squaredup/ractive,squaredup/ractive,cgvarela/ractive,thomsbg/ractive,p0lax/ractive,pingjiang/ractive,dyx/ractive,JonDum/ractive,aliprogrammer69/ractive,cgvarela/ractive,ndimas/ractive,npmcomponent/RactiveJS-Ractive,pingjiang/ractive