Upgrade to Kotlin 1.1.51

build.gradle

@@ -14,7 +14,7 @@ buildscript {
 plugins {
 	id "com.gradle.build-scan" version "1.8"
 	id "io.spring.dependency-management" version "1.0.3.RELEASE" apply false
-	id "org.jetbrains.kotlin.jvm" version "1.1.50" apply false
+	id "org.jetbrains.kotlin.jvm" version "1.1.51" apply false
 	id "org.jetbrains.dokka" version "0.9.15"
 	id "org.asciidoctor.convert" version "1.5.6"
 }
@@ -50,7 +50,7 @@ configure(allprojects) { project ->
 	ext.junitJupiterVersion  = '5.0.0'
 	ext.junitPlatformVersion = '1.0.0'
 	ext.junitVintageVersion  = "4.12.0"
-	ext.kotlinVersion        = '1.1.50'
+	ext.kotlinVersion        = '1.1.51'
 	ext.log4jVersion         = '2.9.1'
 	ext.nettyVersion         = "4.1.15.Final"
 	ext.reactorVersion       = "Bismuth-RELEASE"