fix bug where a required field would not be created at the right level
Merge pull request #29 from Parquet/fix_definition_level_for_nested_required

fix bug where a required field would not be created at the right level
more tests for optional vs required
Merge pull request #30 from Parquet/fix_definition_level_for_nested_required

more tests for optional vs required
Add equals and hashcode methods to BinaryWritable
Implement a basic version of the SerDeStats object for ParquetHiveSerDe
Fix Short object for Hive (use short for short instead of byte :))
Add a simple unit test for ParquetSerDe
Merge branch 'master', remote branch 'origin' into parquet_hive