Added the ability to get the current window name and the name of all open windows.
Added in the Session class tests.
Removed my new functions from the DriverInteface so that drivers are not forced to implement it.
Removed my original tests and added a new test for both in JavascriptDriverTest.php.
Modified the JavascriptDriverTest to use try/catch format for testing the getWindowName(s) functions.
Changed some text. Nothing important.
Changed the test exception type to the more specific UnsupportedDriverActionException.
Merge pull request #341 from pthurmond/develop

Adding the ability to get the current window name and the names of all open windows.