add multibyte and wide equivalents of isalnum(), make do_next_word()
work with multibyte strings, and tweak the "smart home" routines to use
move_right() for consistency


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2269 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
6 files changed