Ramp up to D-Bus 0.90

[Havoc Pennington]

John (J5) Palmieri wrote:
> I would love for people to get their patches in and for us to release a
> 0.90 once the bindings are split out.  0.90 would be a feature/API
> freeze for the core.  Any comments, concerns?
> 

Need to go through the "for 1.0" list in doc/TODO and deal with these 
things somehow; either say "it's not important because..." and remove it 
from the list, or fix it...

Havoc