Where does KAuth belong?

[Stephen Kelly]

Hi,

KAuth became a tier1 library in the last week. It's nice to see it separated 
out.

However, it depends on Polkit-Qt, which is in `kdesupport` in the KDE 4 
world currently. 

Polkit-Qt seems like something that would become a tier1 library if that's 
what its developers go for. 

That would make libkauth tier2, right? I'll move it to the tier2 directory 
soonish unless someone else does, though that in itself doesn't mean much. 

The tier1/2 subdirectories will likely go away when each library becomes its 
own git repo I guess. 

Then tier1/2 distinction will only be a matter of documentation (possibly -- 
Actually I don't think it's a distinction that should be 
documented/marketted) and superbuild perhaps if we have a tier1 superbuild.

Any objections to me moving the library? 

Thanks,

Steve.