The project pane rewrite version 2.

This splits up the edit and active settings. Let people try it and
report usability problems. I'm not 100% convinced of the layout either.

src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp

@@ -212,6 +212,7 @@ void Qt4ProjectManagerPlugin::updateContextMenu(Project *project,
     m_runQMakeActionContextMenu->setEnabled(false);
 
     if (qobject_cast<Qt4Project *>(project)) {
+        m_runQMakeActionContextMenu->setVisible(true);
         if (!m_projectExplorer->buildManager()->isBuilding(project))
             m_runQMakeActionContextMenu->setEnabled(true);
     }