ReadOnly ComboBoxes in dlgSelectConnection.cpp

Hi ,

if pgAdmin is startet with option 'S' and there are no QuickConnect
informations in the settings
the readonly comboboxes make no sense.

I tried following code:
if (form == NULL)
{
         cbServer->SetValue(settings->Read(wxT("QuickConnect/server"),
wxEmptyString));
         if (cbServer->IsEmpty())
             cbServer->SetWindowStyleFlag(cbServer->GetWindowStyleFlag()
& ~wxCB_READONLY);

cbDatabase->SetValue(settings->Read(wxT("QuickConnect/database"),
wxEmptyString));
         if (cbDatabase->IsEmpty())

cbDatabase->SetWindowStyleFlag(cbDatabase->GetWindowStyleFlag() &
~wxCB_READONLY);

cbUsername->SetValue(settings->Read(wxT("QuickConnect/username"),
wxEmptyString));
}

but the combobox didn't change to be editable.
So find another patch attached.
Also fixed height of username combobox.

Regards
Steffen