grunt: add MultiTask for generating PEG parsers
grunt: add MultiTask for generating PEG parsers

amber-smalltalk/amber,matthias-springer/amber-athens,matthias-springer/amber-athens,adrian-castravete/amber,adrian-castravete/amber,amber-smalltalk/amber,adrian-castravete/amber,amber-smalltalk/amber,matthias-springer/amber-athens