[Devel] Now you can download data snapshots

[Asheesh Laroia]

I just enabled the download of data snapshots, including all the data
we have downloaded from remote bug trackers. Karen did a lot of the work
on this feature, so thanks to her!

https://openhatch.org/wiki/Importing_a_data_snapshot is the documentation.

I also wrote up a quick blog post to get a little bigger audience for this,
since it's kind of neat. That's on the web at
https://openhatch.org/blog/2010/now-we-publish-data-snapshots/.

-- Asheesh.