Making develop branch.
Reworked sources to have separate TypedUnpacked and Unpacked as well as Packed.
Mostly rewritten to use new AvroScheme and be better
Adding pom files for maven users
Added com.twitter.scalding.Tool as main class for runnable jar
Made PackedAvroSource mappable
Changed pom to not build a fat jar
Some general cleanup and refactoring around Mappable
Updated examples
Switched to use type class for Avro types in order to support passing primitives
Moved Mappable to PackedAvro trait
Merge pull request #2 from ccsevers/develop

Develop branch is current