Wrap Azavea HDFS role with GeoTrellis wrapper role
Wrap Azavea HDFS role with GeoTrellis wrapper role

This changeset ensures that the GeoTrellis HDFS wrapper role is used
instead of the lower level HDFS role.

Resolves #4

lossyrob/geotrellis-ec2-cluster,geotrellis/geotrellis-ec2-cluster,timothymschier/geotrellis-ec2-cluster,geotrellis/geotrellis-ec2-cluster,timothymschier/geotrellis-ec2-cluster,geotrellis/geotrellis-ec2-cluster,lossyrob/geotrellis-ec2-cluster,timothymschier/geotrellis-ec2-cluster,lossyrob/geotrellis-ec2-cluster,geotrellis/geotrellis-ec2-cluster,timothymschier/geotrellis-ec2-cluster,lossyrob/geotrellis-ec2-cluster