first stab at dict encoding
dictionary encoding
fix dictionary encoding
dictionary encoding
Merge branch 'integrate_format_changes' into dictionary_encoding

Conflicts:
	parquet-column/src/main/java/parquet/column/Encoding.java
	parquet-hadoop/src/main/java/parquet/hadoop/ParquetFileReader.java
improve logging
Merge branch 'master' into dictionary_encoding
improve dictionary
improve api; improve logs;improve PrintFooter
better logging
Merge branch 'master' into dictionary_encoding

Conflicts:
	parquet-hadoop/src/main/java/parquet/hadoop/ParquetFileReader.java
mae dictionary more generic; allow converters to understand dictionaries
make converters dictionary aware
Merge branch 'rle' into dictionary_encoding

Conflicts:
	parquet-column/src/main/java/parquet/column/impl/ColumnWriterImpl.java
typo
Merge branch 'master' into dictionary_encoding
integrate RLE into dictionary encoding
Merge branch 'rle' into dictionary_encoding

Conflicts:
	parquet-column/src/main/java/parquet/column/values/bitpacking/ByteBasedBitPackingEncoder.java
	parquet-column/src/main/java/parquet/column/values/rle/RLESimpleEncoder.java
update git ignore
javadoc