Cptac

This release includes various code updates, and fixes a compatibility issue for Windows (22).

Various updates to package functionality.

This patch release updates dependency requirements to avoid issues that were encountered with certain old versions of pandas and the new versions of xlrd.

This release includes various small bugfixes and updates. `xlrd` has stopped supporting .xlsx files, so `pandas` now uses `openpyxl`; some small changes were made to accommodate this, and the dependencies in setup.py were updated. We also updated the `cptac.list_datasets` function to stream data availability info from Box, so it can be updated more easily. Various other small updates were made.

We also have now made the documentation available on a GitHub pages site, https://paynelab.github.io/cptac/

This release reflects that the BRCA data is now publicly accessible, and a password is no longer required to download the files.

This release fixes a bug in the WikiPathways data parser that had previously caused the various `cptac.utils` functions that access WikiPathways data to return incomplete results.

It also includes an update to the LSCC data to now use the log-ratio CNV file.