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
use RLE for booleans
remove outdated TODO
rename method to describe better its purpose
code review changes
Merge branch 'RLE_BOOLEAN' into delta_strings_with_binpack

Conflicts:
	parquet-column/src/main/java/parquet/column/Encoding.java
few code review changes and support for writer version flag
Merge branch 'delta_strings_with_binpack' of github.com:Parquet/parquet-mr into delta_strings_with_binpack
changing encodings to match with parquet-format