bug#1754: 23.0.60; tool-bar is shown with tool-bar-mode off

[martin rudalics]

>> 1. `tool-bar-mode' should be modal and affect all existing
>> and subsequent frames, regardless of their default alist
>> (`special-display-frame-alist', `pop-up-frame-alist', or
>> `default-frame-alist').

Then why do you specify such alist entries in the first place?

>> 2. `pop-up-frame-alist' should not be used for creating
>> normal new frames.
[...]
>> "Alist of frame parameters used when creating pop-up frames.
>> Pop-up frames are used for completions, help, and the like.
>> This variable can be set in your init file, like this:
>>   (setq pop-up-frame-alist '((width . 80) (height . 20)))
>> These supersede the values given in `default-frame-alist',
>> for pop-up frames."

I shall clean up the docstring of `pop-up-frame-alist' to make clear
that it _is_ used for creating normal new frames.

> I think the bug was introduced when someone translated the C code definition 
of
> `display-buffer' to Lisp.

That someone was me and the bugs I introduced caused continuous crashes
of Emacs and many finance markets all over the world.  Let's hope for a
change then ...

martin