Laravel Translatable Versions Save

• 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.

Minor cleaning

Translated classes answer "true" when asked if their translated attributes are set.

• The Translation class suffix default can be overridden in the app config. See 7ecc0a75d
• The app.fallback_locale setting can be overridden in each model separately. See #33
• Fallback translation is not returned if it is not defined.

Fixed issue #26: A new record is not saved if it is not dirty.

Fallback locale is now taken from app.fallback_locale config key.

Fixed: translations not saved when object not dirty. (laravel core was updated)

• Added fallback to default locale if translations is missing.
• Added travis environment for laravel 4.2.

Updated dependencies in composer.json.

• Removed syntax $model->en->name because conflicts may happen if the model has a property named en. See #18.
• Added method hasTranslation($locale). See #19.