Update release plugin

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1703356 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/scr/pom.xml b/scr/pom.xml
index e83ec8c..cc49b52 100644
--- a/scr/pom.xml
+++ b/scr/pom.xml
@@ -280,6 +280,11 @@
                 </configuration>
             </plugin>
             <plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-release-plugin</artifactId>
+                <version>2.5.2</version>
+            </plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <configuration>