Revision control
++ QT += widgets
++ requires(qtConfig(listwidget))
++
++ HEADERS = window.h \
++ animation.h
++ SOURCES = main.cpp \
++ window.cpp
++
++ FORMS = form.ui
++
++ RESOURCES = easing.qrc
++
++ # install
++ target.path = $$[QT_INSTALL_EXAMPLES]/widgets/animation/easing
++ INSTALLS += target