GitLab

Add ability to rebind the (still unfinished) undo and redo functions in case anyone is interested in testing it out early.
Add to nanorc.5 also.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4280 35c25a1d-7b9e-4130-9fde-d3aeb78583b8