Move Merge plugin into a build package structure

build.gradle

@@ -46,7 +46,7 @@ configure(allprojects) {
 }
 
 configure(subprojects) { subproject ->
-	apply plugin: MergePlugin
+	apply plugin: "merge"
 	apply from: "${gradleScriptDir}/publish-maven.gradle"
 
 	jar {

buildSrc/src/main/groovy/org/springframework/build/gradle/merge/MergePlugin.groovy

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2002-2012 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.build.gradle.merge
+
 import org.gradle.api.*
 import org.gradle.api.artifacts.Configuration
 import org.gradle.api.artifacts.ProjectDependency;

buildSrc/src/main/resources/META-INF/gradle-plugins/merge.properties

@@ -0,0 +1 @@
+implementation-class=org.springframework.build.gradle.merge.MergePlugin