Bug 20585: Label surname as name for organisation type patrons

Bug 20585: Label surname as name for organisation type patrons

This patch modifies the patron edit page so that the label for an
organization name is "Name" instead of "Surname."

To test, apply the patch and edit both an institutional patron and a
regular patron. Confirm that the name/surname label is correct in each
case.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>