Screenlets NowPlaying doesn't support Audacious2

[ENigma885]

Binary package hint: screenlets

**Problem:-
Now Playing Screenlet used to work pretty well with Audacious <2. But since Audacious 2 is released it stopped working with it.
   ***What was expected:-
        - After installing Audacious2 and Screenlets, enabling Nowplaying screenlet, and configuring it to monitor Audacious , it should detect its status.
   ***What happened instead:-
        - Nothing appears in the NowPlaying screenlet except "sh: audtool: not found".
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**Environment:-
- Screenlets 0.1.2-7 on Ubuntu 9.10 Alpha 5.
- Audacious 2.1.0 and its plugins (audacious-plugins and audacious-plugins-extra)
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**Hypothesis:-
1 - It all happens because in Audacious2 all original Audacious commands used have been changed to Audacious2. So, the commands used to retrieve the current playing song for example is not "audtool --current-song" any more it became "audtool2 --current-song" instead.
2 - The Audacious detection file of Nowplaying, located in "/usr/share/pyshared/screenlets/plugins/Audacious.py", contains all the old Audacious commands. So, all the commands sent to control or monitor Audacious2 don't reach it basically.
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**Suggested solution:
- Mainly all the Audacious commands used are "audtool" variants. So, all have to be replaced by by "audtool2" in the previously mentioned file to be able to control Audacious2.
- This configuration change shall be present as Audacious2 specific not to make any confusion since Audacious2 2.1.0 is available in Karmic universe repositories.

[ENigma885 (enigma-pentagram)]

@Isak Frants: could you provide some info on why to change the bug status to invalid?