Moving build release announcements

[trevor]

It just occured to me that build announcements should go in the Announcements forum.

Since build notes are a recent (within a couple months) and started as informal notes, I didn't want to clutter the announcements.

But the build release notes are becoming fairly formal, so I might as well put them in an obvious place and not buried in a developer's forum.

So if you're not already, watch the announcement forum, that's where I'll post future build release notes.

(Note that I'll still post build progress in this forum)