Merge branch 'update-copyright-year' into 'master'

include/IO.h

include/aboutDialog.h

include/analysePlot.h

include/animation.h

include/autoCalib.h

include/aviFileWriter.h

include/backgroundFilter.h

include/backgroundItem.h

include/blurFilter.h

include/borderFilter.h

include/brightContrastFilter.h

include/calibFilter.h

include/calibStereoFilter.h

include/codeMarkerItem.h

include/codeMarkerWidget.h

include/colorMarkerItem.h

include/colorMarkerWidget.h

include/colorPlot.h

include/colorRangeWidget.h

include/compilerInformation.h