[mew-int 2928] Identify urls

Sometimes Mew can't identify correctly an url. Looking at this issue,
it does not seem trivial to identify one using regex. Heck, even
`thingatpt' can't always do it as one would expect (try
`(http://www.example.com)').

Well, I slightly modified the regex used by Mew to identify urls. In
my brief experience it seems to recognize correctly a little bigger
set of urls than the previous one.

What do you think?

-- 
Diogo F. S. Ramos

diff --git a/mew-vars.el b/mew-vars.el
index d6c2e61..4a8b238 100644
--- a/mew-vars.el
+++ b/mew-vars.el
@@ -2855,7 +2855,7 @@ in Summary/Virtual mode."
    "\\|"
    "\\(\\(s?https?\\|ftp\\|gopher\\|telnet\\|wais\\)://\\)"
    "\\)"
-   "[^ 　\t\n>)\"]*"
+   "[^ 　\t\n\"]*"
    "[^ 　\t\n>.,:)\"]+")
   "*Regular expression to find URL."
   :group 'mew-highlight