Publish rev3 of "Polishing Rationals" proposal
Publish rev3 of "Polishing Rationals" proposal

- Changes proposal of using RatStr as Rat/FatRat "allomorph"
    into `MidRat` type that is the actual Rat/FatRat allomorph
    (and `MidRatStr` being a `MidRat`/`Str` allomorph)

rakudo/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,labster/rakudo,softmoth/rakudo,rakudo/rakudo,rakudo/rakudo,lucasbuchala/rakudo,tony-o/rakudo,tony-o/rakudo,nbrown/rakudo,salortiz/rakudo,tbrowder/rakudo,nbrown/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,labster/rakudo,softmoth/rakudo,nbrown/rakudo,labster/rakudo,salortiz/rakudo,tbrowder/rakudo,Gnouc/rakudo,tony-o/rakudo,softmoth/rakudo,salortiz/rakudo,softmoth/rakudo,softmoth/rakudo,salortiz/rakudo,Gnouc/rakudo,Gnouc/rakudo,nbrown/rakudo,tony-o/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,nbrown/rakudo,rakudo/rakudo,tony-o/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,salortiz/rakudo,rakudo/rakudo,labster/rakudo,salortiz/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,labster/rakudo,lucasbuchala/rakudo,Gnouc/rakudo,tony-o/rakudo,tbrowder/rakudo,rakudo/rakudo,nbrown/rakudo,labster/rakudo