シンプルなWebサーバ+LivereloadだけのGruntfile ref: http://qiita.com/cu39/items/29a0322e7e86f616ee3c

file0.txt

{
  "name": "greeter",
  "version": "0.0.0",
  "description": "",
  "main": "greeter.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "cu39",
  "license": "MIT",
  "devDependencies": {
    "grunt": "^0.4.4",
    "grunt-concurrent": "^0.5.0",
    "grunt-contrib-connect": "^0.7.1",
    "grunt-contrib-watch": "^0.6.1",
    "grunt-typescript": "^0.3.0",
    "load-grunt-tasks": "^0.4.0",
    "time-grunt": "^0.3.1"
  }
}

file1.coffee

'use strict'

# # Globbing (元のコメントを翻訳)
# パフォーマンスを上げるため1階層下だけにマッチさせている:
# 'test/spec/{,*/}*.js'
# すべてのサブフォルダに再帰的にマッチさせたいならこちらを使う:
# 'test/spec/**/*.js'

module.exports = (grunt) ->

  # Show elapsed time after tasks run
  require('time-grunt') grunt

  # Load all Grunt tasks
  require('load-grunt-tasks') grunt

  grunt.initConfig

    # Project settings
    config:
      # Configurable paths
      app: '.'
      css: '<%= config.app %>/.'
      ts:  '<%= config.app %>/.'
      js:  '<%= config.app %>/.'

    # grunt-contrib-watch
    watch:
      typescript:
        files: ['<%= config.ts %>/{,*/}*.ts']
        tasks: ['typescript:server']
      livereload:
        options:
          livereload: '<%= connect.options.livereload %>'
        files: [
          '<%= config.app %>/{,*/}*.html'
          '<%= config.css %>/{,*/}*.css'
          '<%= config.js %>/{,*/}*.js'
        ]

    # grunt-typescript
    typescript:
      options: {}
      server:
        src: ['<%= config.ts %>/**/*.ts']
        dest: '<%= config.js %>/greeter.js'
        optionj:
          module: 'amd'
          target: 'es5'

    # grunt-contrib-connect
    connect:
      options:
        port: 9000
        livereload: 35729
        # change this to '0.0.0.0' to access the server from outside
        hostname: 'localhost'
      livereload:
        options:
          open: true
          base: ['<%= config.app %>']

    # grunt-concurrent
    concurrent:
      server: [
        'typescript:server'
      ]
  # end of grunt.initConfig

  # register tasks
  grunt.registerTask 'serve', ->
    grunt.task.run [
      'concurrent:server'
      'connect:livereload'
      'watch'
    ]

  grunt.registerTask 'default', ['serve']

Gruntfile.coffee

"use strict"

# # Globbing
# for performance reasons we're only matching one level down:
# 'test/spec/{,*/}*.js'
# use this if you want to recursively match all subfolders:
# 'test/spec/**/*.js'

module.exports = (grunt) ->

  # Show elapsed time after tasks run
  require("time-grunt") grunt

  # Load all Grunt tasks
  require("load-grunt-tasks") grunt

  grunt.initConfig

    # grunt-contrib-watch
    watch:
      typescript:
        files: ["./{,*/}*.ts"]
        tasks: ["typescript:server"]
      livereload:
        options:
          livereload: '<%= connect.options.livereload %>'
        files: [
          './{,*/}*.html'
          './{,*/}*.css'
          './{,*/}*.js'
        ]

    # grunt-typescript
    typescript:
      options: {}
      server:
        src: ["**/*.ts"]
        dest: "greeter.js"
        options:
          module: 'amd'
          target: 'es5'

    # grunt-contrib-connect
    connect:
      options:
        port: 9000
        livereload: 35729
        # change this to '0.0.0.0' to access the server from outside
        hostname: "localhost"
      livereload:
        options:
          open: true
          base: ['.']

    # grunt-concurrent
    concurrent:
      server: [
        'typescript:server'
      ]
  # end of grunt.initConfig

  # register tasks
  grunt.registerTask "serve", ->
    grunt.task.run [
      "concurrent:server"
      'connect:livereload'
      'watch'
    ]

package.json

{
  "name": "greeter",
  "version": "0.0.0",
  "description": "",
  "main": "greeter.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "cu39",
  "license": "MIT",
  "devDependencies": {
    "grunt": "^0.4.4",
    "grunt-concurrent": "^0.5.0",
    "grunt-contrib-connect": "^0.7.1",
    "grunt-contrib-watch": "^0.6.1",
    "grunt-typescript": "^0.3.0",
    "load-grunt-tasks": "^0.4.0",
    "time-grunt": "^0.3.1"
  }
}