Merge pull request #10 from Ailenswpu/master

update database.yml.example to DRY
Thanks
changed layout to add admin login
Added one more model of admin
Removed public/index and change the first page to users/list
added a controller of tession accoding to session
Merge branch 'master' of github.com:mistbow/cms_6bey
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:Ailenswpu/cms_6bey
Merge branch 'master' of github.com:Ailenswpu/cms_6bey
Merge branch 'master' of github.com:hlee/cms_6bey
modify First documentation
Edit the First README file
Merge pull request #15 from hlee/master

change the README file
Merge remote-tracking branch 'upstream/master'
Deploy to SinaSAE
Merge pull request #16 from Youngv/master

Deploy to SinaSAE
Sure thanks for commit
Please update the Sina SAE url to README
gem organize
update README with heroku deploy
change readme add display url
解决了无法登录的bug，并修改bcrypt-ruby的版本