bug#14700: 24.3.50; Animated ImageMagick images doesn't work

[Lars Magne Ingebrigtsen]

I've now run this stuff over portions of the sizeable collection of
animated cat pictures in gwene.com.feedburner.cheezburger, and I fixed
some problems with some GIFs that may perhaps not be on spec, but should
be interpreted correctly, anyway.

So the only remaining thing now is to write a suitable caching
mechanism, but I'm not going to do that today, at least.

-- 
(domestic pets only, the antidote for overdose, milk.)
  No Gnus T-Shirt for sale: http://ingebrigtsen.no/no.php
  and http://lars.ingebrigtsen.no/2013/08/twenty-years-of-september.html