Sarah (Sally) Guthrie

When sanitizing data, use periods instead of semicolons

6

Question answer options are separated using semicolons, so using semicolons to sanitize commas causes a bug further down the line in analysis: [https://github.com/onnela-lab/beiwe-backend/issues/53](https://github.com/onnela-lab/beiwe-backend/issues/53)

`cifti2.cifti2_axes.BrainModelAxis.iter_structures` function behavior differs from documentation

4

The documentation of `iter_structures` indicates that it yields a (string, slice, BrainModel) tuple; however, the actual behavior returns a (string, slice, slice) object.