delete all .DS_Store files
delete all php ending tags.
update README.md

1. Front Controller 实际的分发在 _lp/lp.init.php 中
2. LP3 现在采用 BootStrap 前端框架
3. 加上 BootStrap 和 jQuery 的链接
Merge pull request #6 from picasso250/master

delete useless file, delete php ending tag, update docs