Roster > improve format of group membership in export file

Create three sites, all with the "Roster" tool: two project sites, and one course site (which contains at least one roster) In project site #1, create a group and assign yourself to the group In project site #1, go to the "Roster" tool and click "Export" Verify the file downloaded contains a second spreadsheet titled "Groups", and also verify the data in both sheets In project site #2, go to the "Roster" tool and click "Export" Verify the file downloaded contains only one sheet: "Roster" and verify the data within In the course site, go to "Site Info" and create several groups containing students (auto groups for the student role is sufficient) Go to the "Roster" tool, click "Export" Verify the file downloaded contains two sheets, and verify the data within Click the "Enrollment Status" tab, then click "Export" again Verify the file downloaded contains two sheets; verify that there are different columns displayed on both sheets compared to the previous export, and that the data within both sheets is accurate