Merge pull request #3 from Bubblings/master

修正文字错误
Add Submodule into version control
add grunt-contrib-watch
添加 grunt-contrib-watch 文档
Add Submodule into version control
add grunt-contrib-uglify
add grunt-contrib-uglify
update
Add Submodule into version control
Added .gitkeep to empty folder under template to make folders available to be added in repo.
Added the missing folders from template
update the options in task:copy
translate the readme.md for grunt-shell
Merge pull request #4 from qivhou/master

Correct the copy task and add document for grunt-shell plugin.
合并主项目的更新