Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
http://manual.calibre-ebook.com/faq.html#how-do-i-move-my-app-library-from-one-computer-to-another
Basically just back up the directory, restore it on your new OS. Start up calibre and it'll ask where your library is.