* Set the default to 3 instead of 1, to be more forgiving of mistyped passwords. Unlikely to help bots much; quite likely to help blind people who aren't really really really careful typers.
* Commit some whitespace change I had lying around.
* Hooking into the APIEditBeforeSave hook (which will appear in the ApiEdit_Vodafone branch in the next revision)
* Moved general CAPTCHA generation in SimpleCaptcha to getCaptcha()
* Moved general confirmEdit() functionality to doConfirmEdit() to facilitate differtiating between UI and API handling
* Adding SimpleCaptcha::addCaptchaAPI() method that adds CAPTCHA information to an API result array. Other CAPTCHA implementations should override this method with a function that does the same (did this for FancyCaptcha and MathCaptcha)
