v0.3.0

• FIXED: do not crash the consumer if the received message is invalid json (or whatever the expected format)
• NEW: introduced a new Event: MessageConsumptionFailed (triggered when message processing raises an Exception)
• NEW: the ConsoleCommand producer gained a batchPublish() method
• NEW: a new EXPERIMENTAL consumer is available for executing Console-Command messages. It is registered as service
  kaliop_queueing.message_consumer.inprocess_console_command
  The difference with the standard kaliop_queueing.message_consumer.console_command consumer is that this one does
  not fork a new php process to execute the received commands.
  This has the effect of making it:
  • fast
  • prone to memory leaks
  • prone to resource leaks
  • sensitive to problems with long-lived database connections
  • prone to problems with fatal errors (unless you are on php 7 and you catch them all as exceptions)