Administration menu - Content languages

Provides a dropdown menu with available languages when adding content for all content types that default to the current language in the Administration menu.

This can be useful when the "Set current language as default for new content." multilingual setting is checked for a content type.

Requires the following modules:

- Administration menu (admin_menu)
- Multilingual content (i18n_node), so we can check for the "Set current language as default for new content." multilingual setting.

The Drupal 8 version is available for admin_toolbar only: Admin Toolbar Content Languages