Patch to make some strings available to translations

Hi,

I already sent this patch a few months before, but didn't get an answer
on it. So, I updated it and hope for the best :)

Anyways, a few words on one file of this patch. I had to change
system/global/pgpage.php in two ways.

First, to add '.UTF-8' to the locale. Without, I couldn't get any
gettext translation to work. I wonder if Adrian had to do the same for
his translation. I don't think the way I did it is absolutely right, so
I would like comments on this.

Second, base_href is set to http://www.postgresql.org/, making any links
go to the official website. I'm wondering why we didn't use the value of
$_SETTINGS['hosted_url'] for example as it can be a local setting.

Any comments ? better ways to solve these ?

Thanks.

Regards.

--
Guillaume.
http://www.postgresqlfr.org
http://dalibo.com