Siikir CMS Update

* There's an admin GUI for reconfiguring the site's plugins (not useful for end users)
* All photo thumbnails are now square shaped. I'm using the jQuery Jcrop plugin for this.
* Comments on everything by a guest user now supports Facebook Graph API to login with Facebook.

These changes are now live on both sites. Also, the web blog and photo commenting code is live on Siikir now too (but blogs are still for admins only until I work out a safe way to restrict HTML for the regular users).

Everybody's existing photos were automatically cropped down. New photos uploaded get cropped automatically, but the user is immediately given the option to change the thumbnail himself. You can also re-crop the photo at any time from your photo view page.