Added link to ga.js

Just got rid of it.

Accidentally pushed to my fork after making the pull request, so it got
added :(.

(It was some code from a test I was doing to automate JSHint checking when
pushing to Github. I'll explain more when I've done some more work on
that.)

On Fri, Oct 10, 2014 at 4:10 PM, Justin Uberti <notifications@github.com>
wrote:

> In README.md:
>
> > @@ -1,3 +1,5 @@
> > +![Travis](https://travis-ci.org/paullewis/SimpleTest.svg?branch=master)
>
> what's this about?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/GoogleChrome/webrtc/pull/139/files#r18711355>.
>