Use fabdeploytools helpers.
Override app compatibility for SDK add-ons using old versions of the SDK.
Merge pull request #867 from kmaglione/jetpack-compat-override

Bug 885381: Override app compatibility for SDK add-ons using old versions of the SDK...
fix elastichttpnotfound when scanning for indexes in reindex_mkt
Take 2: Override app compatibility for SDK add-ons using old versions of the SDK.
Merge pull request #885 from kmaglione/jetpack-compat-override

Take 2: Override app compatibility for SDK add-ons using old versions of...
Un-magic-number the search-featured API
Add cron user.
Don't use newrelic for celery workers (bug 889924)

This is a try-and-see patch. We've noticed celery problems around the
time this was added.
direct review link URL update (bug 890358)
Bump app-validator