support the simplest possible ruby & python projects.

go/qst.go

	".go": func(name string) string {
		return fmt.Sprintf("go build %s && ./%s", name, strings.TrimSuffix(name, path.Ext(name)))
	},
	".rb": func(name string) string {
		return fmt.Sprintf("ruby %s", name)
	},
	".py": func(name string) string {
		return fmt.Sprintf("python %s", name)
	},
}
func main() {