Provide a means for switching between supported languages.

[mcpierce]

As a non-English speaking reader, I would like to be able to switch the interface language to something other than English.

User Initially Selects A Different Language

Preconditions:

1. The user is viewing any page in the application.
2. The user does not need to be logged in.
3. A menu option is present to change the language.

User Story:

1. The user selects one of the languages in the menu.

Postconditions:

1. The runtime language is changed to what the user has selected.

Authenticated User Selects A Different Language

Preconditions:

1. The user is viewing any page in the application.
2. A menu option is present to change the language.

User Story:

1. The user selects one of the languages in the menu.

Postconditions:

1. The runtime language is changed to what the user has selected.
2. The user's preferences are updated to include the newly selected language.

User Logs In, Previously Set A Non-Default Language Choice

Preconditions:

1. The user is not logged in, or the authenticated user reloads the application.

User Story:

1. The user's profile is loaded.

Postconditions:

1. The runtime language is changed to what the user had previously selected.

User With Non-Default Language Logs Out

Preconditions:

1. The user is logged into the application.
2. The user has selected a non-default language.

User Story:

1. The user logs out.

Postconditions:

1. The application reloads English as the default langauge.