Mechanize users - Dec 2006 - Change I needed to make in to_absolute_uri for unescaped URL separator characters

Mechanize is great!  It''s better than anything I was expecting to be
out
there, and the syntax is really nice.

I had a bit of a problem though -- following URLs with commas.  The code in
to_absolute_uri works great for spaces, but some pages I was working on had
URLs with unescaped commas that URI rejected when I tried to click() on them.
So I changed the first statement in Mechanize#to_absolute_uri to:

url = URI.parse(
       URI.unescape(
       Util.html_unescape(url.to_s.strip)).gsub(/[ ,]/){|m|
''%%%X'' % m[0]}
                 ) unless url.is_a? URI

I don''t know what a more complete solution for this bug is, but this at
least lets me follow the URLs I need to, so here it is if anyone else needs
to use it.

                                                     -- Zach.