add shuffle support to pattern observers
add shuffle support to pattern observers

ISNIT0/ractive,marcalexiei/ractive,marcalexiei/ractive,ractivejs/ractive,JonDum/ractive,ISNIT0/ractive,JonDum/ractive,ractivejs/ractive,JonDum/ractive,ISNIT0/ractive,marcalexiei/ractive,ractivejs/ractive