This adds another combobox for choosing the display. To ease the
display choice we try to roughly describe the display (its resolution
and location).
The combobox is hidden for single display setups.
- renamed files that should be preprocessed with moc: they will have _moc suffix (cpp files were also renamed for consistency)
- fixed disabling of mods that have dependent on them mods
- repositories will be reloaded if changed
- may have fixed non-starting vcmi client on Win
