Change log:
e17be71 (5.1.x) Upgrade to S-Security-5.1.5; ready for release
4a7c8d3 Downgrade Derby to 10.14.2.0
c8e78db GH-2872: Parse all the multi-part files (#2878)
dcad50d Fix If-Unmodified-Since header mapping
e50a0f5 Fix HttpProxyScenarioTests for proper date format
89cf135 GH-2874: Syslog - copy IpHeaders to message
7dbb836 Align dependencies with Boot
659613c Fix RedisUtils.isUnlinkAvailable() for NPE
6f3fd09 GH-2837: TCP NIO Prioritize accept
6e9bb60 (polish-urls-xml-5.1.x) URL Cleanup
aa23349 (polish-urls-remaining-5.1.x) URL Cleanup
b19535b Fix Gradle build to read files in UTF-8
afa8753 (polish-urls-apache-license-5.1.x) URL Cleanup
3bd29ed Upgrade to SF-5.1.6 & S-WS-3.0.7
3491cba GH-2820: Close session in FtpRemFileTempl.exists
1cc9ff2 URL Cleanup
df697c5 GH-2806: Add generics support to HTTP Inbound
8d99039 Fix typo in AbstractMessageChann for "data types"
84c69d5 Fix missing import
3f3d98c GH-2799: Fix AnnGateProxyFB for empty errChannel
a42411f Fix MMIHelper for reinitialization (#2786)
d8ec835 Fix Zookeeper Issues
d886733 Fix meter leaks in the Pollable channels
dd6cd51 (spring-operator/5.1.x) Fix race in TcpOutboundGatewayTests
648760b GH-2776: Fix Streaming Remote File MessageSource
298d10e GH-2770: AbstractMessageSource EvaluationContext
cb1b1c8 GH-2759: Fix CorrelationData.future
40fd8d3 GH-2752: RequestMapping: react only for our event