upgrade the surefire maven plugin

pom.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.codehaus.sonar</groupId>
@@ -180,7 +181,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.5</version>
+          <version>2.6</version>
         </plugin>
         <plugin>
           <groupId>org.codehaus.sonar</groupId>
@@ -192,7 +193,7 @@
           <artifactId>sonar-packaging-maven-plugin</artifactId>
           <version>0.1</version>
         </plugin>
-        
+
       </plugins>
     </pluginManagement>
 
@@ -223,7 +224,7 @@
                   <banLatest>true</banLatest>
                   <banRelease>true</banRelease>
                   <phases>clean,deploy</phases>
-                </requirePluginVersions>                
+                </requirePluginVersions>
               </rules>
             </configuration>
           </execution>
@@ -332,18 +333,6 @@ mmmm
           </execution>
         </executions>
       </plugin>
-	
-	<!-- Running JUnit tests in parallel
-	<plugin>
-	  <groupId>org.apache.maven.plugins</groupId>
-	  <artifactId>maven-surefire-plugin</artifactId>
-	  <configuration>
-	    <parallel>classes</parallel>
-	    <threadCount>3</threadCount>
-	    <perCoreThreadCount>true</perCoreThreadCount>
-	  </configuration>
-	</plugin>
-	-->
     </plugins>
   </build>
 
@@ -667,7 +656,7 @@ mmmm
         <groupId>org.apache.maven</groupId>
         <artifactId>maven-artifact</artifactId>
         <version>2.0.7</version>
-      </dependency>      
+      </dependency>
       <dependency>
         <groupId>org.apache.maven</groupId>
         <artifactId>maven-project</artifactId>