Upgrade to Reactor-Netty-0.7.8

Author: artembilan

build.gradle

@@ -126,7 +126,7 @@ subprojects { subproject ->
 		mysqlVersion = '8.0.11'
 		pahoMqttClientVersion = '1.2.0'
 		postgresVersion = '42.0.0'
-		reactorNettyVersion = '0.7.7.BUILD-SNAPSHOT'
+		reactorNettyVersion = '0.7.8.BUILD-SNAPSHOT'
 		reactorVersion = '3.2.0.BUILD-SNAPSHOT'
 		romeToolsVersion = '1.9.0'
 		servletApiVersion = '4.0.0'