use --batch-mode for maven when building AWS SDK, improving Hudson/Jenkins output

java/com.amazon.aws.aws-java-api/createLocalAwsApiP2Repository.sh

@@ -88,7 +88,7 @@ echo "Building the wrapper bundle..."
 cd ..
 echo "NOT USING ${extra} arguments for Maven to avoid using local target definition already for building local repo"
 echo "In folder $(pwd) using: mvn clean install"
-mvn clean install
+mvn --batch-mode clean install
 mkdir -p ${UPDATE_SITE_PROJECT}/plugins/aws-sdk
 rm -rf ${UPDATE_SITE_PROJECT}/plugins/aws-sdk/*
 # Note: the JAR ends up in target/ because the SDK project does not use any parent pom, so