v4.4

• Drops support for laravel 4.0.
• Compatible with laravel 4.1 and laravel 4.2.
• External config file.
• Fallback issue fixed.
• Added translated and translatedIn scopes.
• Changed behavior: getting non existing translations with getTranslation() used to return objects, now null is returned.
• Translated attributes now shown when converting toArray() or toJson().
• Fixed bug: fill() created empty translations even when translated attributes were not fillable.
• Added option to make translated attributes always fillable.