#85 vfs::http (sometimes?) loads old version of http package

[Zbigniew]

% package require vfs::urltype
1.0
% package require vfs::http
0.6
% vfs::urltype::Mount http
Mounted at "http://"
% set fd [open http://sourceforge.net/projects/tcl\]
invalid command name "::http::geturl"
[..]
% package present http
1.0

More information in the thread at:
http://groups.google.com/group/comp.lang.tcl/browse_thread/thread/ff3375bd0c8ab97e#

The simplest bugfix seems to be just to replace "package require http" with "package require http 2.0" in the header of httpvfs.tcl file.