Fixed variable name.
Rounded out the DataType list.
Allowed Xcode to bump the version number, also set 10.8 as the new minimum deployment target so that non-functioning localised XIBs are no longer a warning.
Added a helper for applying the painter’s algorithm — a reproduction of the separating planes test that used to lie elsewhere. I may need to think about whether this is the appropriate resting place for it.
Removed a couple of dead stores so as completely to satisfy the static analyser.