I just see you have make a new release of your guestbook...great

I plan to upgrade but before I would like to know more about the new features...In your "News" I see this:
* Changed icon names in administration to not conflict with other extensions
* Captcha JHTML method set as default
* Added new parameter - Display path information in javascript editor
* Parameter Website can be edited in administration now
I don't understand well 2 points...It is about Captcha and Parameter website...
1) About captcha right now we can choose between Jroute and Jhtml...What is the difference between this 2 method ??? I always used Jroute without problem..
2) What do you mean about Parameter Website ? What is new in compare with version 1.3.2 ???
Many thank