Replace cdo::readline by std::getline

src/CMOR.cc

src/Command.cc

src/Importobs.cc

src/Makefile.am

src/Maskbox.cc

src/Remapeta.cc

src/Selmulti.cc

src/Selregion.cc

src/Setrcaname.cc

src/cdo.cc

src/cmortable_parser.cc

src/grid_read_pingo.cc

src/institution.cc

src/institution.h

src/mapping.cc

src/namelist.cc

src/readline.cc

src/readline.h

src/region.cc

src/region.h