Revision control
++ QT += qml quick
++
++ CONFIG += qmltypes
++ QML_IMPORT_NAME = People
++ QML_IMPORT_MAJOR_VERSION = 1
++
++ SOURCES += main.cpp \
++ person.cpp \
++ birthdayparty.cpp \
++ happybirthdaysong.cpp
++ HEADERS += person.h \
++ birthdayparty.h \
++ happybirthdaysong.h
++ RESOURCES += valuesource.qrc