Merge pull request #2 from cristovaocasagrande/master

 "new version of the program to parse .map and .ped files from the publics data of the openSNP"
Merge pull request #3 from cristovaocasagrande/master

The files parse_files_openSNP.py and map_and_ped.py to read and handle the openSNP files to create map and ped files.
When gender is unknown use 9 to encode it in PED file.
When gender is unknown use 'other' to encode it in PED file. This generate ERROR.
replace 'other' for '9'. Gender problem