Fix bug 1135693: Add update scripts to repo.

[pmclanahan]

Moves the scripts run by cron to this repo. Also included is the script to update product-details, but I believe we have to alter chief to have it be the one that is run, or at least symlink to this one from the original path.

[pmclanahan]

@jgmize r?

I also took the liberty of cleaning up some of the code and fixing issues with the dev autoupdate script.

[pmclanahan]

Specific chief alterations required after this merges:

• Change shell script called in /data/bedrock/src/www.mozilla.org-django/product-details-push.py to bin/update-scripts/prod/update-prod-product-details.sh in this repo.
• Remove the following from the commander script above: ctx.remote(settings.REMOTE_UPDATE_SCRIPT). The shell script already deploys the changes.

Also on that last point I believe that calling that REMOTE_UPDATE_SCRIPT syncs all changes in the WWW dir on the admin node to production. This assumes that the WWW dir is always in a good state, but that assumption is not safe.

[pmclanahan]

@superawesome you may have opinions on this one as well.

[pmclanahan]

I'mma split out the part of this that will fix dev autoupdating. Don't merge this until that one is merged and this is rebased.

[pmclanahan]

@jgmize rebased and updated.

[jgmize]

@pmclanahan this lgtm, but I'd feel better if @superawesome would take a look as well before we merge this one.

[pmclanahan]

@jgmize I went ahead and moved the chief deploy script for product-details in here. We'd just need to symlink to this one from the old one like we've done for all of the rest of the chief commander scripts.

[jgmize]

Thanks @pmclanahan. @superawesome if this looks good to you I'd like to merge this, and then would you mind making the appropriate puppet changes after we push this to prod?

[jgmize]

Based on https://bugzilla.mozilla.org/show_bug.cgi?id=1135693#c4 I think we're good to go :)