Check for create form for all account registration wizards before sending the user to the web registration page. Video configuration form adjustments (some insets added and changed a border). Check for create form for all account registration wizards before sending the user to the web registration page. Do not reinitialize receive stream when we switch from camera to desktop streaming and vice-versa (in other words when we change the capture device during a call). Check for registered security authority implementations before starting using the default implementation. Rebuilds the FFmpeg JNI library on Linux to include the MJPEG decoder and parser in order to fix 'Webcam (gspca-based) does not work anymore with Jitsi on Debian Testing' reported by Kertesz Laszlo on the dev mailing list.