move plugin version to a property and plugins annotations in compile scope

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1360768 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 9d2f39a..b0e3c09 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,6 +52,7 @@
 
   <properties>
     <mavenVersion>2.0.6</mavenVersion>
+    <mavenPluginVersion>3.1</mavenPluginVersion>
   </properties>
 
   <dependencies>
@@ -83,7 +84,8 @@
     <dependency>
       <groupId>org.apache.maven.plugin-tools</groupId>
       <artifactId>maven-plugin-annotations</artifactId>
-      <version>3.1</version>
+      <version>${mavenPluginVersion}</version>
+      <scope>compile</scope>
     </dependency>
     <dependency>
       <groupId>commons-httpclient</groupId>
@@ -135,21 +137,18 @@
     <pluginManagement>
       <plugins>
         <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-plugin-plugin</artifactId>
-          <version>3.1</version>
+          <version>${mavenPluginVersion}</version>
           <configuration>
             <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
           </configuration>
         </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-site-plugin</artifactId>
-          <version>2.0</version>
-        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-plugin-plugin</artifactId>
         <executions>
           <execution>
@@ -169,8 +168,8 @@
       <build>
         <plugins>
           <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-invoker-plugin</artifactId>
-            <version>1.4</version>
             <configuration>
               <debug>true</debug>
               <projectsDirectory>src/it</projectsDirectory>