Updates PhantomJS globals based on 1.7 API.

PhantomJS's API [now includes support for CommonJS modules](https://github.com/ariya/phantomjs/wiki/API-Reference#module-api), and `console.log` is used even in the [Quick Start Guide](https://github.com/ariya/phantomjs/wiki/Quick%20Start). The latest versions of JSHint gripe about these globals, though.