avoid escaping markup too many times.  Allows feed links to display properly when HTML excapes are included.

Support for custom triggers, because Drupal's trigger mechanism is hard for third-party modules to customize.

Infinite session no longer required to register a feed template.

Potential security issue here, so enabled only when fb_session_cookieless_iframe variable is set.
Solves a multitude of session state issues, particularly on iframes in safari and ie6 where cookie support is less than acceptable.

Added a block and callback which help keep canvas page session in sync with other requests (iframes, etc).
Added fb_canvas_form_action_via_facebook, to suppress the default form alters.
Fixed indentation.

Still TODO: clean up all references to FB_FBU_INFINITE_SESSION

Changed user handling.
Both of these changes are designed to make fbConnect authentication easier to support.

Fixed indentation of source code.

Fix invite links

Added pic and square_pic to user info data.

This will probably be made obsolete by fbConnect.