Fix build on Maemo.
Fix build on Maemo.

An isActive -> isOpen renaming was missed.

qtproject/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,tmcguire/qt-mobility,qtproject/qt-mobility,tmcguire/qt-mobility,kaltsi/qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,KDE/android-qt-mobility,KDE/android-qt-mobility,enthought/qt-mobility,tmcguire/qt-mobility,tmcguire/qt-mobility,enthought/qt-mobility,tmcguire/qt-mobility,kaltsi/qt-mobility,kaltsi/qt-mobility,qtproject/qt-mobility,enthought/qt-mobility,KDE/android-qt-mobility,qtproject/qt-mobility,qtproject/qt-mobility,kaltsi/qt-mobility,enthought/qt-mobility,enthought/qt-mobility,KDE/android-qt-mobility