Revision control
++ QT += core websockets
++ QT -= gui
++
++ TARGET = echoclient
++ CONFIG += console
++ CONFIG -= app_bundle
++
++ TEMPLATE = app
++
++ SOURCES += \
++ main.cpp \
++ echoclient.cpp
++
++ HEADERS += \
++ echoclient.h
++
++ target.path = $$[QT_INSTALL_EXAMPLES]/websockets/echoclient
++ INSTALLS += target