Merge remote-tracking branch 'origin/v2.5' into v2.5-fix-h36

src/colvar/DRMSD.cpp

src/colvar/Dimer.cpp

src/colvar/Dipole.cpp

src/colvar/EEFSolv.cpp

src/colvar/ERMSD.cpp

src/colvar/MultiRMSD.cpp

src/colvar/PCARMSD.cpp

src/colvar/PathMSD.cpp

src/colvar/PathMSDBase.cpp

src/colvar/Position.cpp

src/colvar/PropertyMap.cpp

src/colvar/Puckering.cpp

src/colvar/RMSD.cpp

src/colvar/Torsion.cpp

src/crystallization/MoleculeOrientation.cpp

src/crystallization/Q6.cpp

src/dimred/ClassicalMultiDimensionalScaling.cpp

src/dimred/DimensionalityReductionBase.h

src/dimred/OutputPCAProjections.cpp

src/dimred/PCA.cpp