catch addon.doesnotexist in theme update queue
Add basic logging for when persona verification fails
mkt app review emails are sent from app-reviewers@mozilla.org (Bug 910786)
Merge pull request #1070 from wagnerand/review-mail-sender

mkt app review emails are sent from app-reviewers@mozilla.org (Bug 910786)
Add Collections to Fireplace featured API endpoint (bug 901710)