Adding support for ASCII in term-palette.sh.
Adding support for ASCII in term-palette.sh.

term-palette.sh now has some more options for fancy decoration of the
palette frame, including pure ASCII and none (aka, no frame). But the
default is still the utf8 and it is dummy and do not check for output
terminal capability to handle utf8 chars.

rff/cfgbin,rff/cfgbin,rff/cfgbin,rff/cfgbin