Check QMLType when adding new QML files to project to prevent error message being shown

Change-Id: I68df3c69b535d47109bfb94c3089fd78e8b3683d
Reviewed-on: http://codereview.qt.nokia.com/514
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/qt4projectmanager/qt4nodes.cpp

@@ -1187,6 +1187,7 @@ QStringList Qt4PriFileNode::varNames(ProjectExplorer::FileType type)
         vars << QLatin1String("SUBDIRS");
         break;
     case ProjectExplorer::QMLType:
+        vars << QLatin1String("OTHER_FILES");
         break;
     default:
         vars << QLatin1String("OTHER_FILES");