[Ref #9] Add grunt npm module.
[Ref #9] Add dummy Gruntfile.js
[Ref #9] Add npm module load-grunt-tasks for auto loading grunt tasks.
[Ref #9] Add npm module time-grunt for timing grunt tasks.
[Ref #9] Add default task to start server in development mode.
[Ref #9] Add live reload.
[Ref #9] Pre-compile *.html.jade to *.html files.
[Ref #9] Add production env config file.
[Ref #9] Change the path of views and public resources in development to ./tmp.
[Ref #9] Add copy images to ./tmp.
[Ref #9] Add .tmp folder to .gitignore file.
[Ref #9] Add Bower with lib json3 and es5-shim.
[Ref #9] Add compass to compile SCSS.
[Ref #9] Add autoprefixer.
[Ref #9] Load JS.
[Ref #9] Add JS hint task.
[Ref #9] Use concurrent for building the proj.
Merge pull request #11 from hycheung0509/feature/grunt-basic

[Close #9] Basic Grunt Setting for Development Use