error handling when mastodon instance is under load
Twice now I ran into a problem where mastodon-bot re-posted a flood of Twitter posts from before the last sync.
What I suspect is going on that the mastodon instance was under load, and returned an error when mastodon-bot queried for the last successfully-synced message. We should check that in that case mastodon-bot should not sync any posts, rather than syncing all posts.