update maven-javadoc-plugin config

Author: oldratlee

pom.xml

@@ -161,6 +161,18 @@
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-javadoc-plugin</artifactId>
 						<version>2.10.2</version>
+						<configuration>
+							<show>public</show>
+							<charset>UTF-8</charset>
+							<encoding>UTF-8</encoding>
+							<docencoding>UTF-8</docencoding>
+							<links>
+								<link>http://docs.oracle.com/javase/7/docs/api</link>
+							</links>
+							<additionalJOptions>
+								<additionalJOption>-J-Duser.language=en -J-Duser.country=US</additionalJOption>
+							</additionalJOptions>
+						</configuration>
 						<executions>
 							<execution>
 								<id>attach-javadocs</id>