Moved back to version 2.3.7 of the 'maven-bundle-plugin'.

git-svn-id: https://svn.apache.org/repos/asf/directory/project/trunk@1496893 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index e431685..dc75d7a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -652,7 +652,7 @@
         <plugin>
           <groupId>org.apache.felix</groupId>
           <artifactId>maven-bundle-plugin</artifactId>
-          <version>2.4.0</version>
+          <version>2.3.7</version>
         </plugin>
 
         <plugin>