Determines the language which will apply to the Movable Type interface when no user is logged in.

The value should be the name of a "localization module" installed on your server. Localization modules should be placed in the directory lib/MT/L10N/ within the Movable Type directory. For more information on how to get a localization module for your language, see http://www.sixapart.com/movabletype/ and http://www.movabletype.org/l10n/

When a user is logged in to Movable Type, the interface will be presented in the language specified by the user's profile settings.

Default value: en_us