- General - Added multiple-line regex support. Format in .nanorc is start=regex...

- General - Added multiple-line regex support.  Format in .nanorc is start=regex end=regex.  Cleaned up nanorc:parse_colors(), added parse_next_regex(), changes to edit_add in winio.c(), changes to colortype, cleaning up some old cruft

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1021 35c25a1d-7b9e-4130-9fde-d3aeb78583b8