The following things were changed compared to version 1.8:

o  Look for <ncurses/ncurses.h>, as used by Cygwin.
o  Use LC_CTYPE to determine printable characters and display
   unprintable characters as \xx, not as M-chr.
o  Allow M-. instead of C-space and C-x . instead of M-C-@.
o  Accept +line as option to jump to a specific line besides -l line.
