Hadoop source URL need to be updated

[lorco]

Hi,

Thanks for this, just a small message to let you know that the Hadoop URL are out of date ;)

[janrockdev]

Links update: (hadoop-spark/Dockerfile)

Download Hadoop package

ADD https://archive.apache.org/dist/hadoop/core/hadoop-2.6.0/hadoop-2.6.0.tar.gz /tmp/

Download Spark package

ADD https://archive.apache.org/dist/spark/spark-1.4.0/spark-1.4.0-bin-hadoop2.6.tgz /tmp/