v2.4.7

Change log:

5017e03 Upgrade Versions; Prepare for Release
2746ebe GH-1473: Revert CompletableFuture Changes
e8f12b2 GH-1449: Fix Auto Recovery Docs
08b7171 GH-1494: Fix Test Harness with @repeatable
a8470fd Improve Stream Template Test Coverage
88734c3 GH-1491: Fix Fallback When Parameter is Optional
caa5052 GH-1491: Fix Possible NPE
38e0803 GH-1487: Countdown not active AsyncMProcConsumer
3d3dfa5 GH-1491: Support Optional/null Payloads
67bfec9 GH-1480: Switch to CompletableFuture in s-r-stream
9e04fb1 Fix Javadoc in the AsyncRabbitTemplate2
038f8f6 GH-1473: Move RabbitFutures to Top Level Classes
819630c Fix Sonar Issue
fac71c4 GH-1473: Fix Unused Import
439ccd1 GH-1473: Switch to CompletableFuture
37109ad Fix Copyright in the BatchingRabbitTemplateTests
10274fe GH-1474: Fix MessageProperties.lastInBatch
765e011 GH-1474: Fix BatchingStrategy Propagation