allow creating a fresh new empty buffer

[jidanni@xxxxxxxxxxx]

(info "(emacs-w3m) Creating and killing buffers")
doesn't say how to create a fresh empty buffer.
All it says is that one can clone only.
Confirmed via C-c C-h which shows no equivalent to Firefox or IE's
'create new tab' or 'create new window' commands.
No we don't always want to make a whole new copy of an unrelated buffer
just to get a new buffer!
emacs-w3m-version
 => "1.4.400"