* Fixes for issues with binary MARC - RIS-152

  - In case of a MarcException, attempt to continue reading
    stream if continue-on-errors is on.
  - Use MarcStreamReader instead of MarcPermissiveStreamReader
    for iterating MARC file.
  - Inject MarcPermissiveStreamReader in the process for reading
    AND converting single records to UTF-8.
  - Always keep the original MARC as a byte array (since that is
    created always anyway as input for the permissive reader.
  - Remove option for non-buffering input stream since the code as
    it's written will always apply buffering anyway.

* Downgrade CompletePendingCommand timeout error log to warn log