Update project file and schemes for Xcode 5
Parallelised luminance conversion routine and also converted floating point to integer math. Difference in result from FP math is on average less than 1 level. Decent performance boost =)
Revert the "un-premultiplying" code
Correct RSSExpandedStackedInternalTestCase target for OS X
Removing separate test target for blackbox tests

Unfortunately multiple test targets don't seem to work when testing on
the simulator. I get the error "The Simulator can't be launched because
it is already in use."