• Fix audio device list problem reported by Pujan Srivastava on dev (subject: Device List problem, July 8, 2010). Fix empty space in audio and video config forms.
• Add some cleanups on unregistering jabber provider and remove some possible mem leaks.
• Fix audio device list problem reported by Pujan Srivastava on dev (subject: Device List problem, July 8, 2010).
• Fix some NPEs in jabber provider and fixing build.