Add missing plugin versions

Author: Burak Serdar

pom.xml

@@ -321,7 +321,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses />.
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
-                        <configuration>
+                         <version>2.9.1</version>
+                       <configuration>
                             <additionalparam>-Xdoclint:none</additionalparam>
                         </configuration>
                     </plugin>
@@ -343,6 +344,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses />.
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>findbugs-maven-plugin</artifactId>
+                <version>3.0.1</version>
                 <configuration>
                     <effort>Max</effort>
                     <threshold>Low</threshold>