erica/NSDate-Extensions — pull request #31 by AshFurrow (2013-04-02 14:58:27+00:00)
Title: Adds #undef statements at end of implementation

I've added `#undef` statements at the end of the implementation file so developers using the library can re-use these `#define` macro identifiers.

A better solution than using the `#define` statements here might be `static const` variables, but that's a matter of style. I can do that instead and update the pull request if you like.