Internationalization support

[MysticFragilist]

As a user of what's new feature, I would want to be able to read the what's new entry either in English or in French.

The solution would add support for what's new page to be internationalized

An object could be added that would replace where we use String :

public class InternationalizedText {
    public String Fr { get; set; }
    public String En { get; set; }
}

With that, we only have to replace every field needed to be internationalized with this class. (I.E. making title and description in WhatsNewPage this object)