Supply.throttle control message is now key:value
Supply.throttle control message is now key:value

Rather than using a Pair (which is awkward to use in an .emit anyway,
because you need extra parens to not make it a named parameter), we
now use a string of the form "key:value".  This should *also* make it
much easier to use Supply.throttle as a means of controlling supply
processing across multiple machines.

LLFourn/rakudo,usev6/rakudo,nbrown/rakudo,ab5tract/rakudo,lucasbuchala/rakudo,nbrown/rakudo,lucasbuchala/rakudo,labster/rakudo,MasterDuke17/rakudo,paultcochrane/rakudo,azawawi/rakudo,MasterDuke17/rakudo,samcv/rakudo,ugexe/rakudo,labster/rakudo,salortiz/rakudo,ugexe/rakudo,usev6/rakudo,tony-o/rakudo,awwaiid/rakudo,ungrim97/rakudo,tbrowder/rakudo,ugexe/rakudo,ungrim97/rakudo,salortiz/rakudo,usev6/rakudo,awwaiid/rakudo,azawawi/rakudo,softmoth/rakudo,paultcochrane/rakudo,raydiak/rakudo,b2gills/rakudo,LLFourn/rakudo,raydiak/rakudo,zostay/rakudo,b2gills/rakudo,softmoth/rakudo,raydiak/rakudo,azawawi/rakudo,rakudo/rakudo,samcv/rakudo,nbrown/rakudo,ungrim97/rakudo,rakudo/rakudo,labster/rakudo,Gnouc/rakudo,LLFourn/rakudo,tbrowder/rakudo,salortiz/rakudo,jonathanstowe/rakudo,awwaiid/rakudo,tbrowder/rakudo,samcv/rakudo,lucasbuchala/rakudo,salortiz/rakudo,LLFourn/rakudo,dankogai/rakudo,salortiz/rakudo,ungrim97/rakudo,Gnouc/rakudo,lucasbuchala/rakudo,sjn/rakudo,tony-o/rakudo,dankogai/rakudo,ab5tract/rakudo,jonathanstowe/rakudo,awwaiid/rakudo,ungrim97/rakudo,samcv/rakudo,sjn/rakudo,raydiak/rakudo,salortiz/rakudo,paultcochrane/rakudo,zostay/rakudo,ugexe/rakudo,tbrowder/rakudo,dankogai/rakudo,samcv/rakudo,nbrown/rakudo,tbrowder/rakudo,rakudo/rakudo,ugexe/rakudo,tony-o/rakudo,b2gills/rakudo,tony-o/rakudo,paultcochrane/rakudo,paultcochrane/rakudo,ab5tract/rakudo,zostay/rakudo,rakudo/rakudo,Gnouc/rakudo,usev6/rakudo,jonathanstowe/rakudo,softmoth/rakudo,ab5tract/rakudo,sjn/rakudo,dankogai/rakudo,b2gills/rakudo,sjn/rakudo,Gnouc/rakudo,dankogai/rakudo,softmoth/rakudo,ab5tract/rakudo,sjn/rakudo,nbrown/rakudo,azawawi/rakudo,MasterDuke17/rakudo,usev6/rakudo,b2gills/rakudo,tony-o/rakudo,tony-o/rakudo,tbrowder/rakudo,azawawi/rakudo,rakudo/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,rakudo/rakudo,jonathanstowe/rakudo,labster/rakudo,lucasbuchala/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,labster/rakudo,awwaiid/rakudo,LLFourn/rakudo,zostay/rakudo,nbrown/rakudo,labster/rakudo,softmoth/rakudo,Gnouc/rakudo