You can now use the web API service for groups to upload
a CSV file to create and update groups

The new page is below, and gives all the details about the format
/admin/groups/uploadcsv.php

Bug #547688

Change-Id: Ic116c836e607ae3d1f6c0f67bbbf1f9c119828a8
Signed-off-by: Hugh Davenport <hugh@catalyst.net.nz>