removed plyflatten and disp2ply from makefile (sources are not yet on this branch)
removed plyflatten and disp2ply from makefile (sources are not yet on
this branch)

mnhrdt/s2p,mnhrdt/s2p,jmichel-otb/s2p,carlodef/s2p,carlodef/s2p,dyoussef/s2p,MISS3D/s2p,MISS3D/s2p,dyoussef/s2p,dyoussef/s2p,jmichel-otb/s2p,MISS3D/s2p,jmichel-otb/s2p,dyoussef/s2p,MISS3D/s2p,jmichel-otb/s2p