Add a quick and dirty shortcut to xprop

Signed-off-by: Ray Lehtiniemi <rayl@mail.com>
Query helper to to partial matching.

The className Query doesn't seem to handle windows with several
classes? Hack this together for now..

Signed-off-by: Ray Lehtiniemi <rayl@mail.com>
Shift windows to workspaces based on class or title.

Signed-off-by: Ray Lehtiniemi <rayl@mail.com>