Added a few disableEvent unit tests, cleaned up the installation instructions

I was running into a global variable leak error when using global variables in the unit tests, so I had to add them into the unittests.shares.js file. http://stackoverflow.com/questions/8360318/global-leak-errors-in-mocha.

If there's a different way to solve this solve this solution we can talk about it. There's definitely clean up to do for the unit tests still but they do run right now.