Fixes and test for oxford gen reader
Improved posterior probability handling  and several improvements to Oxford file format reading and writing
removed some old code
fixed test that got broken
added gen to reader formats
fix imports
fix imports and typo
Improved logging
fix import
Oxford gen writer
fix sex in binary plink
Added oxford gen writer
update sex header
Added oxford gen reader and writer to Genotype Harmonizer, including test
fixed not removing files add end of test
fixed not removing files add end of test
Merge pull request #164 from PatrickDeelen/master

Added oxford gen reader and writer, some updates to genotype harmonizer