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

SW-699: added messagelogger which can listen and log all (or filtered) messages from an exchange. Useful for debugging/tracing behaviour in production

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-699: Use exchange,routing_key syntax for AbstractBusListener constructor, drop use of **kwargs, fix IngestEventHandler as it was still propagating subjects to listen for

SW-699: Remove use of subject in ToBus constructor, as it will silently overwrite the subject of messages sent through it

SW-699: Make notifications unconfigurable, greatly reducing complexity of the higher abstraction layers.

SW-699: Use a single broker and bus (exchange), and make service names unconfigurable (fixed in Service and RPC). Greatly reduces configuration size.

ROHD-1729: uploadMetadata: use db credentials from config file. Properly install config files for this module in CMake.

SW-657: Python programs can be started as parameter to python/python2/python3. Let SoftwareMonitor recognise them properly

SW-693: Do not depend C++ code on a pure-python package, as our CMake does not support that (well, LCS/Common does not)

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!

SW-657: locking. logging. added test to reconnect to frombus if not receiving new jobs when the jobmanager says there are jobs to do

SW-657: added connection error handling + auto reconnect. Limited the number of threads for the buslisteners because of proton multithreading issues

SW-657: Use scu001/199 directly for LCS/Messaging/python, to avoid relying on qpid infrastructure for our services.