Wt

Recently a support email was asking about the correct way to implement localization.
While they were very close to most items being correct, there seemed to be a fundamental misunderstanding in how Wt does the substitution, and subsequent refreshing of the strings when the locale changes (i.e. language selection).

We should create a short tutorial walking through:

• how an application uses its resource bundles
• advantages and disadvantages of approaches, like using a WContainerWidget, and adding content to it in code, or specifying a WTemplate, should be made clear here.
• how `WTemplate uses its functions
• how WString localization functions (and how it doesn't) (i.e. having a localized string, and changing/appending content will result in a literal, which is no longer localized)

This tutorial will come with some inline code, and the code as a whole should be made public as well, so it can be experimented with.