old_contents: var gulp = require('gulp')
  require('traceur/bin/traceur-runtime')
  var $ = require('gulp-load-plugins')({
      lazy: true
  });
  
  
  gulp.task('default', ['serve-dev'])
  
  gulp.task('test', ['build'], function () {
      return gulp.src('build/**/*Spec.js', {
              read: false
          })
          .pipe($.mocha({
              reporter: 'nyan'
          }))
  })
  
  gulp.task('serve-dev', ['build'], function () {
      serve(true)
  })
  
  gulp.task('serve-build', ['build'], function () {
      serve(false)
  })
  
  gulp.task('clean', function () {
      return gulp.src('build', {
              read: false
          })
          .pipe($.clean())
  })
  
  gulp.task('build', ['clean'], function () {
      gulp.src('src/views/**')
          .pipe(gulp.dest('build/views/'));
  
      return gulp.src('src/**/*.js')
          .pipe($.sourcemaps.init())
          .pipe($.traceur({annotations:true, types:true, typeAssertions:true, typeAssertionModule:'../assert'}))
          .pipe($.sourcemaps.write('.'))
          .pipe(gulp.dest('build'))
  })
  
  gulp.task('test', ['build'], function () {
      return gulp.src('build/**/*Spec.js', {
              read: false
          })
          .pipe($.mocha({
              reporter: 'nyan'
          }))
  })
  
  function serve(isDev) {
      require('./build')
  
      var debug = true //args.debug || args.debugBrk
  
      if (debug) {
          var exec = require('child_process').exec
          exec('node-inspector')
      }
  }
  
new_contents: var gulp = require('gulp')
  require('traceur/bin/traceur-runtime')
  var $ = require('gulp-load-plugins')({
      lazy: true
  });
  
  
  gulp.task('default', ['serve-dev'])
  
  gulp.task('test', ['build'], function () {
      return gulp.src('build/**/*Spec.js', {
              read: false
          })
          .pipe($.mocha({
              reporter: 'nyan'
          }))
  })
  
  gulp.task('serve-dev', ['build'], function () {
      serve(true)
  })
  
  gulp.task('serve-build', ['build'], function () {
      serve(false)
  })
  
  gulp.task('clean', function () {
      return gulp.src('build', {
              read: false
          })
          .pipe($.clean())
  })
  
  gulp.task('build', ['clean'], function () {
      gulp.src('src/views/**')
          .pipe(gulp.dest('build/views/'));
  
      return gulp.src('src/**/*.js')
          .pipe($.sourcemaps.init())
          .pipe($.traceur({annotations:true, types:true, typeAssertions:true, typeAssertionModule:'../assert'}))
          .pipe($.sourcemaps.write('.'))
          .pipe(gulp.dest('build'))
  })
  
  gulp.task('test', ['build'], function () {
      return gulp.src('build/**/*Spec.js', {
              read: false
          })
          .pipe($.mocha())
  })
  
  function serve(isDev) {
      require('./build')
  
      var debug = true //args.debug || args.debugBrk
  
      if (debug) {
          var exec = require('child_process').exec
          exec('node-inspector')
      }
  }
  
subject: Remove nyan Mocha reporter to show better results in Travis CI