Changes to WebDriverBrowser.open to match the interface method that it implements and return Event<T>.
Removed the wait until method in WebDriverBrowser.open();
Updating unit tests.
changes to the return types and tests for back, forward, and refresh.
Changes made to tests to accurately reflect changes made to open(), refresh(), forward(), and back()
Formatting fixes
Merge branch 'master' of https://github.com/jacobmartens/darcy-webdriver into jacobmartens-master
Fix formatting