Updating javadoc to version 2.9.1

Author: gm2552

pom.xml

@@ -285,7 +285,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.6.1</version>
+                <version>2.9.1</version>
                 <configuration>
 				    <additionalparam>-Xdoclint:none</additionalparam>
 					<charset>UTF-8</charset>
@@ -337,7 +337,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.6.1</version>
+                <version>2.9.1</version>
                 <configuration>
 				    <additionalparam>-Xdoclint:none</additionalparam>
 					<charset>UTF-8</charset>