- Remove singular key names from JSON schema.
- Align the property tree created by `FairMQSuboptParser` with the format required by the main parser (plural names).
- Fix `--print-options` to print all options (not only those that have their value set).
- remove XML parser (outdated and unused).
- various code cleanup.
- Avoid polling when only one input channel is used.
- Send only handles for shared memory transport.
- Avoid waiting in the rate logger thread when nothing to log.
- Hide warnings from generated files
- Fix#483
