Build fix
Remove avro tools from build dependencies
CSV hive imports are now impala-compatible
Large rewrite of data descriptor infrastructure to get rid of custom serdes.  That allows us to use Impala
Keep track of which files have been brought into Hive
Try Impala queries if available; if not, back down to Hive queries
Fix small comment bug
Fix ivy version
Fix inheritance hierarchy with avro table creation
Improved join support
Merge