Adds trivial UnitGroup
Merge pull request #100 from johnynek/feature/unit-monoid

Adds trivial UnitGroup
Adds support for case classes in TuplePacker
Make dateRange and tz lazy in DefaultDateRangeJob
Merge pull request #104 from johnynek/feature/default-date-improvements

Feature/default date improvements
Fixes bug in head/last in unsorted groupBys
Merge pull request #105 from johnynek/feature/head-fix

Feature/head fix
Fix typo in comment
Merge pull request #103 from johnynek/feature/case-case-pack

Feature/case case pack
Add a method to GroupBuilder to force all aggregation on the reducers.
Merge pull request #107 from azymnis/feature/force_to_reducers

Add a method to GroupBuilder to force all aggregation on the reducers.
Update kryo-related dependencies. Convert scala serializers to new API.
Merge pull request #110 from sritchie/feature/kryo_upgrade

Upgrade Kryo to 2.16.
Make sure SequenceFile uses the fields list if one is passed in
Adding Matrix library
Merge pull request #113 from avibryant/master

Make sure SequenceFile uses the fields list if one is passed in
Updates scald.rb
Merge pull request #114 from johnynek/feature/scald-update

Feature/scald update
Fixes cases of mutable inits to foldLeft/scanLeft
Undo accidental commits