v4-ized, and use "mzscheme.exe" on cygwin
v4-ized, and use "mzscheme.exe" on cygwin

svn: r11364

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