+ 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
+ regenerated html documentation.
+ expand manpage description of parameters for form_driver() and
menu_driver() (prompted by discussion with Adam Spragg).
+ add null-pointer checks for cur_term in baudrate() and
def_shell_mode(), def_prog_mode()
+ fix some memory leaks in delscreen() and wide acs.
