Added full example on using Selenium with WebBrowser and HtmlUnitDriver.
Made all remaining examples in atAGlance page to work when copy-and-pasted into REPL.
More concise example for Selenium.
Changed css class 'tight' to 'stTight', and use it for <pre> tag in atAGlance page.
Added more explanation to 'eventually'.
Added hyperlinks to explanation text in atAGlance page.