Tried to improve the "Status of this Document" section.

The text change is there so it can be used both in the TTWG FPWD and TTCG
specifications.
The "then" makes it sounds like you first look at 1.0 and then look at the most recent spec. I think if we say anything, we should discourage looking at 1.0 and encourage looking at the most recent spec and sending feedback to the CG. Maybe simply "Implementors are encourages to always target the Living Specification and provide feedback to the Community Group"?