Merge branch 'v2.1' into v2.2

src/analysis/Analysis.cpp

src/analysis/Analysis.h

src/analysis/AnalysisWithLandmarks.cpp

src/analysis/AnalysisWithLandmarks.h

src/analysis/ClassicalMultiDimensionalScaling.cpp

src/analysis/ClassicalScaling.cpp

src/analysis/ClassicalScaling.h

src/analysis/Commit.cpp

src/analysis/Histogram.cpp

src/analysis/LandmarkRegister.cpp

src/analysis/LandmarkRegister.h

src/analysis/LandmarkSelectionBase.cpp

src/analysis/LandmarkSelectionBase.h

src/analysis/SelectAllFrames.cpp

src/bias/ABMD.cpp

src/bias/ActionRegister.h

src/bias/Bias.cpp

src/bias/Bias.h

src/bias/BiasValue.cpp

src/bias/External.cpp