python tests for videoalpha
Add tests for Youtube part of Videoalpha
Add tests for HTML5 part of Videoalpha
Add tests for Event Logger
Disable tests because of problems with phantomjs
Add tests for additional events
As per PR comments from reviewer, fixing coding style.
Added comment about enabling some Video Alpha tests when testing locally. Updated CHANGELOG.
Fixed up CHANGELOG.
Fixed up CHANGELOG.
Merge pull request #101 from edx/anton/videoalpha_tests

Anton/videoalpha tests