[General] Release Notes and Known Issues wiki info should be dated

[Katie Capps Parlante]

Not to throw a last minute curve ball or anything, but I wanted to bring 
up a minor problem...

These two links have time-specific information, that will go out of date 
or change with the next release:

http://chandlerproject.org/Projects/KnownIssues
http://chandlerproject.org/Projects/ReleaseNotes

I don't think the right thing to do is to just edit the same page pages 
when we are filling out issues and release notes for the next releases. 
I think we ought to preserve the information about the 0.7 release. 
Also, after Preview, the releases of Chandler Server and Chandler 
Desktop will not be coordinated and follow separate lifecycles, so 
combining these pages for both won't make as much sense.

Proposal: Rename to PreviewKnownIssues and PreviewReleaseNotes?

I assume that Features, GetStartedGuide, etc. should just evolve to 
represent the latest and greatest, and that we won't need an archive of 
"features as of Preview", etc.

Cheers,
Katie