Merge pull request AsyncHttpClient#1182 from marshallpierce/maven-javadoc-version

Specify a version for javadoc plugin to appease Maven

Author: slandelle

pom.xml

@@ -150,6 +150,14 @@
 				</executions>
 			</plugin>
 		</plugins>
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<artifactId>maven-javadoc-plugin</artifactId>
+					<version>2.10.3</version>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 	</build>
 	<profiles>
 		<profile>