drupal7-i18n

This is a collection of modules to extend Drupal core multilingual capabilities and be able to build real life multilingual sites. Some features:

• Taxonomy translation (both, per language terms and translatable terms)
• Multilingual variables
• Multilingual blocks (control visibility per language and translate title and content)
• Language selection (when you switch the site language you'll see only the content for that language)

Read a complete feature overview in the Internationalization handbook: Building multilingual sites [1].

[1] https://www.drupal.org/node/133977

drupal7-variable

Variable module provides a registry for meta-data about Drupal variables and some extended Variable API and administration interface. So other modules can know about your module's variables and they can be translated, exported, etc. You'll get automatic variable edit forms, tokens, access control and uninstall for free.