[Alt-tab] Shade ignored window icons.
[Alt-Tab] Tie the connector to the actor.
[Alt-Tab] Clean up list of "ignored" windows.
Debian packaging: provide x-window-manager
[Alt-tab] Faster refresh.
[Alt-Tab] Small edit of quick help text.
[Alt-Tab] Remove some cruft.
[Alt-tab] Thumbnails mode: larger thumbnails, no title.