Update datatables for ajax-datatables-rails 1

[AndrewKvalheim]

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the upstream master branch.
• The tests pass locally with my changes.
• I have added tests that prove my fix is effective or that my feature works (if appropriate).
• I have added necessary documentation (if appropriate).

Short description of what this resolves

#2963 resolved some issues that were detected by the tests, but there are a few more:

1. The controls for pagination, ordering, and filtering have no effect; the same ten records are always displayed.

2. Responses to data requests fail with:

    AjaxDatatablesRails::Error::InvalidSearchColumn: Unknown column. Check that `data` field is filled on JS side with the column name
   

3. The registration datatable fails to render with:

    Uncaught TypeError: cannot use 'in' operator to search for "length" in "["…"
   

Changes proposed in this pull request

1. Connect the data request parameters to the datatable back end.
2. Name the actions column.
3. Update the data sanitization opt-out in accordance with sanitize(data) disabiguation jbox-web/ajax-datatables-rails#326.

To make these updates easier I first removed data and columns that were unused.