Dax

add pandas to reqs

What's Changed
* Bids download by KarthikMasi in https://github.com/VUIIS/dax/pull/417
* Xnatdownload with -c option. Tested with modified csv files and worke… by KarthikMasi in https://github.com/VUIIS/dax/pull/420
* Fix bug in uploading a dir with a single subdir by bud42 in https://github.com/VUIIS/dax/pull/434
* Bids optional by bud42 in https://github.com/VUIIS/dax/pull/433
* Create XnatChangePrearchiveProject by duettwe in https://github.com/VUIIS/dax/pull/432
* --restart sets COMPLETE to NEED_TO_RUN. To restart failed jobs, rerun… by KarthikMasi in https://github.com/VUIIS/dax/pull/428
* Create XnatShareSession by duettwe in https://github.com/VUIIS/dax/pull/424


**Full Changelog**: https://github.com/VUIIS/dax/compare/v2.10.0...v2.11.0

What's Changed
* Removed last download date from Xnatdownload by KarthikMasi in https://github.com/VUIIS/dax/pull/405
* scan notes for setvar by baxpr in https://github.com/VUIIS/dax/pull/407
* Add require_usable option by baxpr in https://github.com/VUIIS/dax/pull/415


**Full Changelog**: https://github.com/VUIIS/dax/compare/v2.9.7...v2.10.0

**Full Changelog**: https://github.com/VUIIS/dax/compare/v2.9.6...v2.9.7

**Full Changelog**: https://github.com/VUIIS/dax/compare/v2.9.5...v2.9.6

**Full Changelog**: https://github.com/VUIIS/dax/compare/v2.9.4...v2.9.5