FOP-3146: Correct fop version at runtime

Author: simonsteiner1984

fop-core/pom.xml

@@ -337,6 +337,17 @@
           <threshold>Low</threshold>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifest>
+              <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
+            </manifest>
+          </archive>
+        </configuration>
+      </plugin>      
     </plugins>
     <resources>
       <resource>