CA-121753: Fixed issue where the GPU edit page was not showing any GPU groups for
pre-vgpu servers.
# HG changeset patch
# User Konstantina Chremmou <Konstantina.Chremmou@citrix.com>
# Date 1384946656 0
#      Wed Nov 20 11:24:16 2013 +0000
# Node ID 845e9425e39d05a31692ca2d222fae22b2931b21
# Parent  370811ffe245c8ea57ebd6f406711f8e1fee5a05

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
CA-107358: Updated tests to reflect button text change. Also, request refreshing
the main treeview from within a Program.Invoke.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>