datadryad/dryad-repo — pull request #539 by dleehr (2014-03-06 16:43:14+00:00)
Title: Handle Errors thrown when transacting doi.db file

See [Trello 182](https://trello.com/c/hpduZclq)

Some operations could raise an AssertionError that was not caught by exception handling code to cleanup the transaction. The modification operations were handling AssertionErrors but the read-only ones were not.

Also cleaned up the logging a little bit.