[MINDEXER-112] - Upgrade maven-parent to version 32
diff --git a/pom.xml b/pom.xml
index c292a07..ef85707 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent</artifactId>
-    <version>31</version>
+    <version>32</version>
   </parent>
 
   <groupId>org.apache.maven.indexer</groupId>
@@ -83,7 +83,6 @@
   </distributionManagement>
 
   <properties>
-    <surefire.version>2.21.0</surefire.version>
     <javaVersion>7</javaVersion>
     <surefire.redirectTestOutputToFile>true</surefire.redirectTestOutputToFile>
     <failsafe.redirectTestOutputToFile>true</failsafe.redirectTestOutputToFile>
@@ -410,17 +409,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin><!-- TODO remove when upgrading to parent pom 31 -->
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-enforcer-plugin</artifactId>
-        <dependencies>
-          <dependency>
-            <groupId>org.codehaus.mojo</groupId>
-            <artifactId>extra-enforcer-rules</artifactId>
-            <version>1.0-beta-6</version>
-          </dependency>
-        </dependencies>
-      </plugin>
     </plugins>
     <pluginManagement>
       <plugins>
@@ -430,11 +418,6 @@
           <version>1.16</version>
         </plugin>
         <plugin>
-          <groupId>org.apache.rat</groupId>
-          <artifactId>apache-rat-plugin</artifactId>
-          <version>0.12</version>
-        </plugin>
-        <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-checkstyle-plugin</artifactId>
           <version>2.17</version>
@@ -448,13 +431,7 @@
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-shade-plugin</artifactId>
-          <version>3.1.0</version>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-site-plugin</artifactId>
-          <version>3.6</version>
           <configuration>
             <topSiteURL>scm:svn:https://svn.apache.org/repos/infra/websites/production/maven/components/${maven.site.path}</topSiteURL>
           </configuration>
@@ -462,19 +439,10 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
-          <version>2.10.4</version>
           <configuration>
             <additionalparam>-Xdoclint:none</additionalparam>
           </configuration>
         </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-release-plugin</artifactId>
-          <version>2.5.3</version>
-          <configuration>
-            <autoVersionSubmodules>true</autoVersionSubmodules>
-          </configuration>
-        </plugin>
         <!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build
           itself. -->
         <plugin>
@@ -491,7 +459,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
-        <version>2.10.4</version>
         <configuration>
           <additionalparam>-Xdoclint:none</additionalparam>
           <groups>