Revision control
++ #! [0]
++ HEADERS = calculatorform.h
++ #! [0] #! [1]
++ FORMS = calculatorform.ui
++ #! [1]
++ SOURCES = calculatorform.cpp \
++ main.cpp
++ QT += widgets
++
++ target.path = $$[QT_INSTALL_EXAMPLES]/designer/calculatorform
++ INSTALLS += target