Add postmark for Mailer send, remove Devise async.
Remove sidekiq-uniqjob, upgrade Sidekiq version.
Integrate jasmine to test JavaScript.

Test example is also added.
Add more tests to cover gotoFloor, then refactor the code
Explain how to run JavaScript test in README
Include javascript test in travis-ci
Upgrade selenium-webdriver
Add New Relic.
Fix deploy script.
fix merge.
Wiki 的评论移到独立页面使得不影响主要内容;
Merge branch 'master' of github.com:ruby-china/ruby-china
Wiki 页面去掉重复的验证提示;
Fix gemfile.
Mongoid version update, mongoid_colored_logger use gem.
整理 Gemfile.
fix gem version.
Fix rake command in production environments.
Change deploy ruby version.
merge.