bug 1545784: fix crashid iterator
bug 1545784: fix crashid iterator

This fixes the crash id iterator in the processor app such that if the queue
code throws an unhandled error, it gets sent to Sentry. That way we know.

lonnen/socorro,mozilla/socorro,mozilla/socorro,mozilla/socorro,mozilla/socorro,lonnen/socorro,mozilla/socorro,lonnen/socorro,mozilla/socorro,lonnen/socorro