lynx-dev cleaning up color options

[Laura Eaves]

Currently there are 2 command line  options related to color:
        -color     turn on color (only defined when using slang)
and     -nocolor   turn off color

So apparently color is on by default when lynx is built
with ncurses, and off by default when built with slang.

Also, the options menu for color setting has 4 options
        NEVER, OFF, ON and ALWAYS
(whatever that means).

I think there should be a single toggle option
        -color

Anyone disagree?
I'd be willing to do the patch if TD is too busy.
--le