varnish: use our jemalloc pkg, not the bundled one.
ilmbase: update to 2.2.0.
openexr: update to 2.2.0.
blender: update to 2.72b.
darktable: revbump to build against new openexr
hugin: revbump to build against new openexr
kdelibs: revbump to build against new openexr