Why do we have to call `LazyL10n` again when `_` is already set within `this` in the `LazyLoader` (see [this line](https://github.com/lissyx/gaia/blob/e267657f3f7bf6db9267f34bdce5487fb8fa950a/apps/communications/dialer/js/call_log.js#L82)).

This way we can get the localized strings by simply calling `this._(stringToBeLocalized)` and removing the whole `LazyL10n` call which for sure adds some performance overhead...