syncing debugging

[lukesmurray]

During any syncing our program gets a dictionary of new messages. Our sync code essentially parses this dictionary and puts it into our database. Sometimes this code breaks but replicating the broken bits can be hard. I was thinking we could at least store the dictionary representation of the new message in a file so that we can try to fix bugs in our code after the fact. The dictionary could be stored in a file with a name matching its md5 hash so that we don't write the same file twice.