Typings for google-analytics

[ssougnez]

https://github.com/retyped/google.analytics-tsd-ambient/blob/master/ga.d.ts

[felixfbecker]

Never heard of retyped before

[blakeembrey]

It was someone's project putting all of DefinitelyTyped onto NPM, but I never saw it update or otherwise work. It's a direct copy of https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/google.analytics/ga.d.ts.