Sylvia/docs/relnotes 7 30

@lamagnifica @mhoeber Please review. There's some back-and-forth about the PR with the Analytics changes in the Release HipChat room; I'll keep watching it and remove this info if necessary.
I dunno - the word "workflow" has always sounded overly tech-y to me. On the other hand, "model" sounds a bit too corporate. Maybe just "We're working on a simplified publishing process that includes clear UI indications..."?