Merge master branch to updated to unified iterations

src/cluster/cluster.cpp

src/include/Commons.h

src/include/Configuration.h

src/include/IterationData.h

src/include/clu_subs.h

src/include/inclu_subs.h

src/inclusion/inclusion.cpp

src/libnptm/Commons.cpp

src/libnptm/Configuration.cpp

src/libnptm/clu_subs.cpp

src/libnptm/inclu_subs.cpp

src/libnptm/outputs.cpp

src/sphere/sphere.cpp