try to fix windows key doc .ssh dir display bug.
Merged in quasimo/cnpaasdoc/gh-pages (pull request #6)

尝试修改文档中路径显示错误问题
Factorise favicons
Update user-login logic according to www/portal changes
fix: on the path to access app resources
Merged in liahsheep/cnpaas-doc/gh-pages (pull request #7)

Update user-login logic according to www/portal changes
Use image as site logo
Merged in liahsheep/cnpaas-doc/gh-pages (pull request #8)

Use image as site logo