Revision control
++ QT += opengl
++
++ HEADERS = $$PWD/glwindow.h \
++ $$PWD/logo.h
++
++ SOURCES = $$PWD/glwindow.cpp \
++ $$PWD/main.cpp \
++ $$PWD/logo.cpp
++
++ RESOURCES += hellogles3.qrc
++
++ target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogles3
++ INSTALLS += target