mozilla/fireplace — pull request #490 by ngokevin (2014-06-23 20:44:14+00:00)
Title: implement startup loading events (bug 1024014)

The docs are at https://developer.mozilla.org/en-US/Apps/Build/Performance/Firefox_OS_app_responsiveness_guidelines

There some ambiguity in what the events mean especially since we show the splash screen up until everything is loaded. So I trigger/group some of the events together once the splash screen is loaded.