java -classpath ./tools/lib/rhino/js.jar;./tools/lib/closure/compiler.jar org.mozilla.javascript.tools.shell.Main ./tools/require/r.js -o app.build.js dir=./temp optimize=closure

closure: {
    CompilerOptions: {},
    CompilationLevel: 'SIMPLE_OPTIMIZATIONS',
    loggingLevel: 'WARNING'
}