- Fix screen getting trashed on signals nano can catch (TERM and HUP).  New global variable curses_ended changes to winio.c:statubar() and nano.c:die()


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1413 35c25a1d-7b9e-4130-9fde-d3aeb78583b8