remove reference to never implemented code
Merge branch 'lammps-icms' of bitbucket.org:akohlmey/lammps-icms into lammps-icms
update colvars module to the latest version from the git repo
correct warning about not returning from function with return value.
Merge branch 'lammps-icms' of bitbucket.org:akohlmey/lammps-icms into lammps-icms