+ modify initialization check for win32con driver to eliminate need for
special case for TERM "unknown", using terminal database if available
(prompted by discussion with Roumen Petrov).
+ for MinGW port, ensure that terminal driver is setup if tgetent()
is called (patch by Roumen Petrov).
+ document tabs "-0" and "-8" options in manpage.
+ fix Debian "lintian" issues with manpages reported in
http://lintian.debian.org/full/csmall@debian.org.html#ncurses
+ modify configure macro CF_XOPEN_SOURCE, etc., to use CF_ADD_CFLAGS
consistently to add new -D's while removing duplicates.
+ modify a few configure macros to consistently put new options
before older in the list.
+ add tiparm(), based on review of X/Open Curses Issue 7.
+ minor documentation cleanup.
+ update config.guess, config.sub from
http://savannah.gnu.org/projects/config
(caveat - its maintainer put 2010 copyright date on files dated 2009)
