Just kidding. Went ahead and added a general try-catch in for actions and matches. In the next minor release, these messages will be returned as errors via the REST API so that partial flows cannot be inserted (based on the correct portions of the JSON-defined flow) and so that the log will not need to be inspected to find the root cause.
Merge pull request #479 from rizard/v1.0

Just kidding. Went ahead and added a general try-catch in for actions an...