Fixed flickering warning when we first land on the Finish page of the HA wizard.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
CA-105791: Step 1 - Move the event handlers of the actions run from the base class
DialogWithProgress to the derived classes EvacuateHostDialog and RepairSRDialog;
leave in the base class only the code updating the common controls.
CA-105791: Step 2 - Removed virtual member call from constructor. Populate VMs
list when the dialog is shown rather than constructed. Somc code tidy.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
CA-105791: Step 3 - Changed the action links colour and added underlining. I did
this by susbstituting the FlickerFreeListBox with a DataGridView, which also fixes
the selection bug, plus we don't have to do custom drawing or costly string
measurements. This change will also aid the fix of CA-20870.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
Merge branch 'master' of git://hg.uk.xensource.com/carbon/trunk/xenadmin