Transform label attribute in handlebars from Ember component

I am attempting to fix an issue caused by the 1.13 upgrade with my internationalization/localization implementation. Nine times out of ten, the default label attribute will appear, but occasionally, we will need to serve up an alternate label based on the user's language settings.

The handlebars template, as it is now, has the following:

{{button-widget label="sample" action="actionHandler"}}

Pre 1.13, we would add a function in the component, called on init, that will look up the current langauge setting, and set "this.label" to whatever the result is within our locale file.

i18n: function() {
    ...
}.on('init')

The {...} looks up the appropriate locale file for the key "test", and updates the label attribute with the result if one is found. For instance, if the user were french, a lookup of "test" might return "échantillon".

From some research, as of 1.13, Ember no longer allows updates to attributes on init. They did, however, create a few new hooks to help (including didInitAttrs and didReceiveAttrs). Unfortunately though, none of them seem to allow me to override the label attribute.

I am attempting to do this without relying on an ugly jQuery hack, and since this is a project being consumed by other applications, button labels may not always be available within the button, so just adding the label to a model and referencing a variable likely isn't a reliable solution.

Any help would be greatly appreciated.

Jason