Update new auth procedure
Add access-control
Bug fixes
Add route for logout
Update models.
Add libraryDependencies -> mysql connector, Temporary delete Vote class
Add authentication, Add example authentication for service
Update README.md
Update models for voting.
Merge branch 'authentication'

Conflicts:
	exceedvote/app/models/User.java
	exceedvote/app/models/Vote.java
	exceedvote/conf/evolutions/default/1.sql
Update a lot of RESTful service.
Update authentication in vote.
Voting fixes
Add user data
Bug fixes
Update myvote.
Update ranking (unsort), and some admin html web page.
Update initial data
Bug fixes
Update initial-data, and view all votes page.