添加了NewsDetail.aspx页面
modify .gitignore
Merge branch 'master' into liuruolin

Conflicts:
	WebSite/App_Code/NewsDAO.cs
	WebSite/App_Code/ServiceNews.cs
	WebSite/NewsDetail.aspx
	WebSite/NewsDetail.aspx.cs
Merge pull request #6 from Kelvin-09/liuruolin

添加了NewsDetail.aspx页面