Banshee doesn't scrobble radio streams to Last.fm

When I'm listening to radio streams through Banshee, it doesn't scrobble the
songs to Last.fm even though the artist and title come through correctly.

I had a quick look at the code and it looks like you need to add the
PlayerEvent.TrackInfoUpdated event into the OnPlayerEvent method in
Banshee.Lastfm.Audioscrobbler.AudioscrobblerService (although I couldn't get
the code building on my machine, so couldn't test this). The AppIndicator
extension (located in the Community Extensions) correctly displays a
notification when the song changes, so it's definitely possible to detect.

Steps to replicate:
1. Ensure you have a Last.fm account set up in Banshee
2. Listen to a radio stream (eg, any AACplus stream on http://www.di.fm/)
   => Expected: Song gets scrobbled to Last.fm
      Actual: Song is not scrobbled to Last.fm
3. Wait for the song to change
   => Expected: Song gets scrobbled to Last.fm, and new song shows as "currently listening to"
      Actual: Song is not scrobbled to Last.fm

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: banshee 2.2.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Dec 12 23:03:30 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: banshee
UpgradeStatus: Upgraded to oneiric on 2011-12-12 (0 days ago)