Log Message:
Update tkinfo to 2.8.  Patch provided by guru at nscl dot msu dot edu
in PR pkg/25528.  While here, switch to Tk 8.4.

Changes since 2.5:

Version 2.8 (22-March-2004): Removed a subtle bug found by Haakon
Riiser; now works correctly with identically named info files in
different directories.

Version 2.7 (21-March-2004): Will now also accept a menu item of the
dir file on the command line (closes Debian bug #149387). Included
/usr/share/info in default directory list (for Debian). Some
documentation updates. Now includes TkInfo.xpm from Debian (under
GPL). Options are now read from system-wide app-defaults file as
advertised.

Version 2.6 (25-June-2003): Minor fixes needed for Tcl/Tk 8.4. This
still works with older versions of Tcl/Tk.