when there is more than one row group the converter will get multiple dictionaries set
add support for ReadSupport specific info in split
fix comments
Merge pull request #62 from Parquet/fix_dic_decoding_bug

when there is more than one row group the converter will get multiple dictionaries set
Merge pull request #66 from Parquet/alexlevenson/fix-rle-comments

Fix the comments in RunLengthBitPackingHybridEncoder.java
Merge pull request #65 from Parquet/ReadSupport_specific_info_in_split

add support for ReadSupport specific info in split