5.0.4.RELEASE

Change log:

921a337 Upgrade to SS-5.0.4, Dep Management Plugin 1.0.5
862baae Comment out libs-staging-local repo
a40fd6a Upgrade to some latest Spring dependencies
141166c Upgrade to Reactor-3.1.5 and Reactor-Netty-0.7.6
29b60c2 INT-4438: No lifecycle twice in the same role
9ce329f Increase timeout for PollingConsumerEndpointTests
de9aeac Fix NPE in the TcpNetServerConnectionFactory
04a61f1 Fix Transformers usage in Docs
2277675 INT-4443: Use SimpleEC for uriVariablesExpression
f49b0ac Upgrade to H2 1.4.197
d6ae8be Reorder beans in JdbcPollingChAParserTests cofigs
2b6cafd INT-4440: Support serialized UUID in headers
a5c16fa Fix AMQP MessageSource Tests
cc63104 INT-4439: Micrometer Docs Polishing
cb3c7a0 INT-4441: Fix ACMH Concurrency Problem
f9da438 INT-4434: Allow to use sub-flows from beans
2d3924a INT-4433: Optimize @publisher metadata
f19f23f LockRegistryLeaderInitiator: Add DEBUG for errors
a244164 Fix unused imports
4e42aa7 INT-4432: Mock Handler: fix output channel
64a3738 INT-4437: Scatter-Gather: reinstate replyChannel
ed563b9 INT-4430: FileSplitter close reader on exception
9836ec5 Upgrade to Micrometer 1.0.2
fa47b0f INT-4428: MethodParam usage: fix race condition
194480d GH-2388: Fix HeaderEnricherSpec for adviceChain
6718d8d INT-4423: Make Micrometer dependency optional
a92933e INT-4427 add value attribute to the @publisher
f479270 Support JUnit5 in tests
212f478 INT-4417: Add @EndpointId
bc25eff Polishing
6065745 INT-4421: Fix failedMessage in some exceptions
1c4db65 Channel Incorrectly started a second timer