SW-827: check in messagebus and rpc/service tests if the TemporaryExchange/TemporaryQueue's are really deleted. Some tests fail now, proving bug SW-827 exists.

SW-811: ToBus.send now retries to reconnect and resend the message upon connection loss. Added test for that as well.

SW-811: added test to prove that sending a message on a broken connection fails with a MessagingError

Resolve SW-796

See merge request !26

(cherry picked from commit ae8f2617)

fe65ce37 SW-796: fixed radb tests
65b4d86f SW-796: fixed t_momqueryservice.py. We still need to un-skip IntegrationTestMoMDatabaseWrapper.
389ea3e4 SW-796: fixed tpyparameterset
4e44e3c3 SW-796: fixed t_TreeStatusEvents
63b9b189 SW-796: typos
2eb326cc SW-796: fixed ingest typos and tests
be63b190 SW-796: fixed t_qa_service
764d8d76 SW-796: fixed t_qa_service
17478140 SW-796: fixed (not-so-complete) test_ra_service_and_rpc
67306896 SW-796: fixed tRATaskSpecified
469fe393 SW-796: fixed t_resource_estimator
6d87ea88 SW-796: fixed t_schedulechecker
3fba3ba2 SW-796: fixed t_resource_availability_checker
7b1f0f7b SW-796: fixed typos in scraper.
c5dc773e SW-796: fixed t_resourceassigner
7f165dd2 SW-796: fixed t_resourceassigner
de48d55c SW-796: fixed ltastorageoverview tests: test_store, integration_test_store and test_lso_webservice
977ee079 SW-796: fixed t_schedulers
6d691753 SW-796: Merge branch 'SW-796' of git.astron.nl:ro/lofar into SW-796
ca84122f SW-796: fixed tresourcetool
98cc4a38 SW-796: fixed t_translation_service
4150a16d SW-796: fixed t_specification_service
c9a5988b SW-796: fixed t_TriggerEmailService
4e779152 SW-796: fixed t_trigger_service
60e265b9 SW-796: fixed t_trigger_cancellation_service
897bd380 SW-796: fixed build dependency for t_ingestpipeline
469e29cd SW-796: Set default port to the one in production.
2c551559 SW-795: Change timeout because its too short for the tests running on the buildhost.
47a70ce8 SW-795: Change timeout to match tested timeout

SW-699: raise in BusListener when it is detected that the provided handler is an empty template handler

SW-699: added documentation to RPCClientContextManagerMixin. renamed rpc_service.py module tp rpc.py, and it's classes to RPCClient and RPCService. Moved Request and ReplyMessage into rpc.py module. Mader MessageFactory and used it in FromBus and rpc.py

SW-699: specify the kwargs not in the contructor, or else you might lose some of the kwargs which are already normal arguments like subject, priority etc

SW-699: refactored/simplified RPC as well. Refactored has_args/has_kwargs quirks in RequestMessage. Have one simple API.

SW-699: major refactoring of the messagebus's BusListener and Service. Together with Jan-David and Auke, I decided to only allow a single API for the service, and we chose the most commenly used API based on the MessageHandlerInterface which we refactored into the ServiceMessageHandler. TODO: add docstrings, fix tests, adapt all Services in lofar python code.

SW-699: fixed some typos. Made TemporaryQueue bindable to and exchange. Route RPC-ReplyMessages via exchange to temporary reply queue

SW-699: major rewrite of FromBus/ToBus, AbstractBusListener and RPC/Service based on kombu/rabbitmq. This allows us to use a single lofar exchange (multiple exchanges are still allowed), and using auto-generated designated queues with subject based routin_keys.

SW-657: added test to prove that proton is not thread-safe. Running the PingPongTester results in eratic behaviour, either deadlocking, of crashing proton. Now let's find a solution!