Merge pull request #1 from Coursemology/master

Merge Masters
Merge branch 'test/hackathon-tests' of https://github.com/wangqiang1208/coursemology.org into rspec-test
Added selenium and made it worked but it is very buggy
Made selenium driver work with the current rspec tests
Merged selenium related changes with development code
Merge branch 'rspec-test'. Can do selenium-chrome tests now.