Upgrade to Jackson 2.8.7 and Dependency Management Plugin 1.0.0.RELEASE

build.gradle

 buildscript {
 	repositories {
+		maven { url "https://repo.spring.io/plugins-release" }
 		maven { url "http://dl.bintray.com/kotlin/kotlin-eap-1.1" }
-		maven { url "https://repo.spring.io/plugins-snapshot" }
 	}
 	dependencies {
+		classpath("io.spring.gradle:dependency-management-plugin:1.0.0.RELEASE")
 		classpath("io.spring.gradle:propdeps-plugin:0.0.8")
+		classpath("io.spring.gradle:docbook-reference-plugin:0.3.1")
 		classpath("org.asciidoctor:asciidoctor-gradle-plugin:1.5.3")
 		classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.1.0-rc-91")
-		classpath("io.spring.gradle:docbook-reference-plugin:0.3.1")
-		classpath("io.spring.gradle:dependency-management-plugin:1.0.0.BUILD-SNAPSHOT")
 	}
 }
 
@@ -56,7 +56,7 @@ configure(allprojects) { project ->
 	ext.httpasyncVersion       = "4.1.3"
 	ext.httpclientVersion      = "4.5.3"
 	ext.interceptorApiVersion  = "1.2"
-	ext.jackson2Version        = "2.8.6"
+	ext.jackson2Version        = "2.8.7"
 	ext.javamailVersion        = "1.5.6"
 	ext.jaxbVersion            = "2.2.11"
 	ext.jaxwsVersion           = "2.2.11"
@@ -176,10 +176,9 @@ configure(allprojects) { project ->
 	}
 
 	repositories {
-		maven { url "http://dl.bintray.com/kotlin/kotlin-eap-1.1" }
 		maven { url "https://repo.spring.io/libs-release" }
 		maven { url "https://repo.spring.io/milestone" }
-		maven { url "https://repo.spring.io/libs-snapshot" }
+		maven { url "http://dl.bintray.com/kotlin/kotlin-eap-1.1" }
 	}
 
 	dependencies {