{"argv": ["R", "--quiet", "-e","IRkernel::main()","--args","{connection_file}"],
 "display_name":"R",
 "language":"R"
}

{"argv": ["R", "--slave", "-e", "IRkernel::main()", "--args", "{connection_file}"],
 "display_name":"R",
 "language":"R"
}

Make R run even more quietly
Make R run even more quietly

fixes #148
