[Bug-apl] Colors for GNU APL

[Juergen Sauermann]

Hello,

I have updated GNU APL which now supports a config file where you
can store some frequently used settings , in particular related to colors
(disabling colors and colors for terminals with e.g. black backgrounds).

See "info apl.info" for details.

An example file containing  (commented out) settings for black backgrounds
is now installed with GNU APL. See e.g. /etc/gnu-apl.d/preferences (or 
whatever
your system configuration directory might be instead of /etc).

⍝ Jürgen