Accessorize Arrays, Numbers, Strings

[brendanjerwin]

If the item being accessorized is an Array, Number, or String then we should return an accessor function.

[brendanjerwin]

Not sure about this one now. A bit of the existing functionality assumes there is an object being wrapped. Take, for instance, the setter chaining. It expects to return the wrapper object from the setter, but does that make sense if the wrapper is an accessor? Maybe accessorizing an array should return something like backbone's collection instead.