Add hadoop-0.20-mapreduce packages from cloudera

Although we are going to use YARN, hadoop package depends on the
hadoop-0.20-mapreduce packages. Previously they existed in our repo
but in the previous commits changing the grep-dctrl expression they got
nuked

Change-Id: I5e1f86b0f7a108fd7c94046fa6d91ec8a8aba063