universal-analytics: Argument order, overloads

Based on my reading of the [`pageview()` function](https://github.com/peaksandpies/universal-analytics/blob/master/lib/index.js#L96) it seems like the existing type definitions had `hostname` and `title` backwards in the parameters list (which is a trivial error since they have the same type).  Also, the function was missing a few overloads with the full list of parameters.