pull in the Jumbo patches from http://www.sonic.net/~roelofs/greg_xv.html.
As far as I can see this covers all our existing patches for added
functionality, although I cannot claim that I have tested each and
every one of them in the new version.
These patches disable a number of image formats that I think are less
common, which have potential heap overflows in the code due to in-
sufficient validation of image dimensions.
The version of the Jumbo patch used here is the 20050501 version.
Package revision bumped to nb10.
