Merge branch 'devel'

pub/.clang-format

pub/CHANGELOG

pub/CMakeLists.txt

pub/ftest/fit6shift.f2t

pub/ftest/fit7op.f2t

pub/ftest/fthb.tab

pub/lib/commands.cpp

pub/lib/commands.hpp

pub/lib/coord.cpp

pub/lib/coord.hpp

pub/lib/curve.cpp

pub/lib/curve.hpp

pub/lib/defs.hpp

pub/lib/edif.cpp

pub/lib/edif.hpp

pub/lib/expr.cpp

pub/lib/expr.hpp

pub/lib/fassign.cpp

pub/lib/fbase.cpp

pub/lib/file_in.cpp