This is a minor release of `pyplink`. Here are the changes:
- The `fid` and `iid` columns in the _fam_ `DataFrame` are now always strings.
- The `snp` column in the _bim_ `DataFrame` are now always strings.
This modification was necessary, as one would expect those columns to be strings, even though they might include only integers. When looking at sample (or marker) identification numbers, one rarely cast these values to `int`...