new flags; added glue-extension; new MzLib compiler.ss flags
new flags; added glue-extension; new MzLib compiler.ss flags

original commit: 7ff840ba27f1dfd981085ac4d703dee1abf47bf9

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket