text: System.config({
    transpiler: 'typescript',
    typescriptOptions: {
      emitDecoratorMetadata: true
    },
    map: {
      typescript: 'node_modules/typescript/lib/typescript.js'
    },
    paths: {
      app: 'app'
    },
    packages: {
      app: {
        main: 'boot.ts',
        defaultExtension: 'ts'
      }
    }
  });
  