Google API TypeScript Definition Files

TypeScript Definition File for the Google API Client (gapi). Also
included are gapi.urlshortener, gapi.youtube, gapi.youtubeAnalytics. All
the Definition files have full JsDoc Support.
Google Translate API
Fixed Minor issues with Translate API

Also updated README.md to include Translate API and added information at
top of definition file.
Google Page Speed Online API
Merge pull request #756 from sgtfrankieboy/master

Google API