Merge pull request #4 from ZOwl/develop

Separated login page
Delete contact model.
Add user create function.
Add user create function.
Merge pull request #5 from ZOwl/develop

Simple layout with nav sidebar.
Merge branch 'develop' of github.com:zhxrain/eots into feature/user-crud
Fix bugs.
Merge branch 'feature/user-crud' into develop
Use jquery layout plugin for main page layouting.