Respect link abbreviations when offering a list of links
John Wiegley writes:
> I have the following data in my Org-mode file:
>
> #+LINK: cegbug https://portal/bugzilla/show_bug.cgi?id=
>
> ** TODO [[cegbug:351][#351]] Bizcard: Fix Maven build setup
> - State "TODO" from "STARTED" [2010-03-01 Mon 14:42]
>
> Now, in the Agenda and in the Org-mode buffer, everything looks fine.
> I can also use C-c C-o if my cursor is within the #<NUMBER> text.
>
> However, if I'm in the Agenda and I hit C-c C-o, it says 'No match'
> after about a second. Is there any reason I can't open these links
> from the Agenda view?