Shopify/active_shipping — pull request #192 by garethson (2014-10-16 15:52:05+00:00)
Title: Usps base price fallback

Do to nuances in how First Class mail pricing is returned, we need to fall back to commercial base pricing if it happens to cost less than commercial plus:

```

First-Class&lt;sup&gt;&#8482;&lt;/sup&gt; Package Service
0.00
2.76
4.05

```

cc @RichardBlair @snormore