LiveFS ubuntustudio-dvd/raring/i386 failed to build on 20130304

[Kaj Ailomaa]

I've been messing with the seeds, and seems like I broke the build.

Having a little trouble debugging the reason. I've made one tiny change to  
the seeds since, but have no idea what is causing this.

I've also prepared new metas. Not uploaded yet, and no idea if they are  
involved in the ISO not building.

seeds removed: audio-common, recording and generation.
seed added: audio (a merge of the three above)
seed changed: audio-plugins (no longer to be an installation task, only  
meta)

metas to be removed(not done yet): -recording, -generation
meta to be changed: -audio (will read from a seed file now, instead of  
depending on other metas)