https://issues.apache.org/jira/browse/AMQ-5350

Don't link the AMQP max frame size to the TransportConnector
maxFrameSize value.
added CamelRoutesBrokerPlugin for https://issues.apache.org/jira/browse/AMQ-5351
https://issues.apache.org/jira/browse/AMQ-5352

Applied and tested, all tests still passing after this change.
[AMQ-5353] Use the same version range for the imports and the features.xml