gf3/moment-range — pull request #43 by rosskevin (2014-05-14 00:27:26+00:00)
Title: Feature - add #diff

This includes prior pull submitted #40 which fixes the bower package name.

This tested addition delegates to the moment#diff method. It is simply there for convenience (I need a diff in quite a few places in code so it was getting cluttered without this method)

Alternately, if DateRange was exposed I could augment it externally, but this seems like a reasonable addition.