Minor code/formatting cleanup
Revert my formatting/cleanup changes, so it's easier to merge in Chris's 2.1-bugfix changes
Merge branch 'master' of github.com:bixolabs/cascading.avro
Fixed bug where Avro was setting shuffle information when used for input only
Making versions match on the bug branch
Added much better comments, fixed the 'record' field hardcoding in the case of packUnpack being false
Fixed issue with not getting schema from a path
Backported some changes/bugfixes from the 2.2-wip
Fixed PackedAvroScheme to use Fields.FIRST for source/sink.
added a warning supression for unchecked
added a way to serialize Avro SpecificRecord. Mainly for use in Scalding.
Fixed serialization to be more efficient and accept AvroRecord trait defined classes.
Changed schema from field to hashmap in case of multiple schemas.
Removed type bound on PackedAvroScheme for better primitive support.