Merge pull request #194 from mahkoh/jorth/dev-removal

input: set seat to None when device is removed

src/tasks/input_device.rs

@@ -96,5 +96,6 @@ impl DeviceHandler {
             .input_device_handlers
             .borrow_mut()
             .remove(&self.dev.id());
+        self.data.set_seat(None);
     }
 }