This commit implements a work around for a bug in 10.7 that was caused by
a 10.7 64-bit ABI breaking change.
Technically, this is not a bug in JSONKit, but with Mac OS X.
When making changes to the ABI, it is (at least de facto) required to bump
the "major version" of a shared library so that code designed around and
built against the "guarantees" provided by previous versions ABI / API
are not violated.
Not only was this not done in 10.7, the ABI breaking change isn't even
officially documented (to the best of my knowledge). It's certainly not
mentioned in the 10.7 release notes.