mapbox/sexagesimal — pull request #2 by yhahn (2014-01-29 19:29:48+00:00)
Title: Exclude false positives from pair results.

Adds tests for the following input and ensures they aren't considered pairs.

> 32W, 66S cruft
> 500 johnson st 11310
> 500 5th
> 500 5th st nw

cc @tmcw pls review