One of the constructors in ParquetWriter ignores
the enable dictionary and validating flags.
Merge pull request #210 from wesleypeck/fixwriter

ParquetWriter ignores enable dictionary and validating flags.
group parquet-format version in one property
Fix Binary.equals().
Merge pull request #215 from Parquet/binary_equals

Fix Binary.equals().
Merge pull request #213 from aniket486/parquet_format_pom_refactor

group parquet-format version in one property
Merge branch 'master' into tajo