add a validation setting to OutputFormat
Speed up Avro string parsing
First pass at RLE hybrid
Cleanup
Add test for setByte()
cleanup preconditions
Add javadoc to ByteUtils
Merge pull request #55 from laserson/fastavro

Write Avro objects to Parquet files 30x faster
bit packing support for LE
Start tests for rle hybrid
Add bit packing overflow test
End to end test
move unpack
Fixup / rename RLEDecoder, fix tests
Merge branch 'master' into alexlevenson/RLE-bit-packing-hybrid
cleanup comments
Merge pull request #57 from Parquet/bit_packing_lsb_first

bit packing support for LE
Address first round of comments
Merge branch 'master' into alexlevenson/RLE-bit-packing-hybrid

Conflicts:
	parquet-column/src/main/java/parquet/column/Encoding.java
	parquet-column/src/main/java/parquet/column/values/rle/RLESimpleEncoder.java
	parquet-column/src/main/java/parquet/column/values/rle/RunLengthBitPackingHybridDecoder.java
Use RLE for repetition / definition levels