re #175.
re #175.

Changed the clickableURL function. Inspired from:
http://prajapatinilesh.wordpress.com/2007/08/08/php-make-urls-clickable-and-short-down/

git-svn-id: 776ea4b3e47339c5b8782ec5e9346c740e073fb4@875 e0e46c49-be69-4f5a-ad62-21024a331aea

hans/tatoeba2,hans/tatoeba2,hans/tatoeba2