(texinfmt-version): Update version.

(texinfmt-version): Update version.
number which is used in header of texinfmt-produced Info files.
(texinfo-format-buffer): Now always tagify, on accout of @anchor.
(texi-format-region): Always tagify.
(texi2info):          Always tagify
(texinfo-anchor):     Add @anchor command as place to which
         a cross reference may go.
(texinfo-no-refill-regexp): Add smalldisplay, smallformat
(texinfo-format-uref):            New command: @uref
(texinfo-format-var):             New command: @acronym
(texinfo-format-code):            New commands: @command, @env, @url.
(texinfo-format-option):          New command: @option
(texinfo-format-example):         New command: @smalldisplay
(texinfo-format-flushleft):       New command: @smallformat
(texinfo-discard-line-with-args): New commands: @novalidate, @pagesize,
@setcontentsaftertitlepage, @setshortcontentsaftertitlepage.