prepair CHANGELOG for 0.4.0 version
prepair CHANGELOG for 0.4.0 version

roramirez/qpanel,skazancev/qpanel,skazancev/qpanel,skazancev/qpanel,roramirez/qpanel,roramirez/qpanel,skazancev/qpanel,roramirez/qpanel