Skip test which might be responsible for segfaults.

tests/mainwindow/statusbar/test_progress.py

@@ -44,6 +44,9 @@ def progress_widget(qtbot, monkeypatch, config_stub):
     return widget
 
 
+@pytest.mark.xfail(
+    reason='Blacklisted because it could cause random segfaults - see '
+           'https://github.com/hackebrot/qutebrowser/issues/22', run=False)
 def test_load_started(progress_widget):
     """Ensure the Progress widget reacts properly when the page starts loading.