Comment 5 for bug 74

Another summary of the IRC conversation from earlier:

We should be using both the "dir" and "lang" attributes when displaying the translated content (both in text boxes and for the "similar languages" display).

The "dir" attribute is needed to set the global direction for the text fragment, and the "lang" attribute is required to correctly render some text (e.g. for CJK languages, different fonts may be picked for a string of code points depending on language).

The lang attribute should be of the form "en-AU" (i.e. with a dash rather than an underscore).