Add a flag to indicate whether a repo is launched; omit pre-launch repos from feeds/repo

[GoogleCodeExporter]

It's important to solve this problem in order to avoid pre-announcing repos to 
systems that are subscribed to the repo feed, before a repo is ready for 
launch.  During the 2013 Oklahoma tornado response, feeds/repo included an 
entry for the 2013-oklahoma-tornado repository even though it wasn't launched 
yet.

The new flag should be settable from the admin page.  When a repo is in the 
"not yet launched" state, there should be a visible message on every page, 
similar to the "test mode" message.

Original issue reported on code.google.com by kpy@google.com on 21 May 2013 at 9:45

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Assigning to Abby, who is working on this.  Thanks Abby!

Original comment by kpy@google.com on 31 Jul 2013 at 8:29

[GoogleCodeExporter]

Hi Abby,

Any progress on this? Let me know if there is anything I can help to get this 
going.

Original comment by r...@google.com on 21 Oct 2013 at 1:06

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The delay on this fix is my fault; I have been very slow to review Abby's 
changeset.  I've committed her changeset as 
abbysywe-only-launched-repos-in-feed, with a few related updates to the server 
tests.  Since it's been such a long pause and a lot of people are out of the 
office right now, I'd like to give you (Ryo and Hiroshi) a chance to look at it 
before merging it to default: http://codereview.appspot.com/36970044

Original comment by kpy@google.com on 27 Dec 2013 at 12:01

• Changed state: reviewing

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Original comment by kpy@google.com on 27 Dec 2013 at 12:02

[GoogleCodeExporter]

Original comment by kpy@google.com on 9 Aug 2014 at 6:37

• Changed state: done