Adding translation files to install profile? I am building a Drupal installation profile to make deployment of my site easier, ideally I would like to include the translation files to the install profile as well. But apart from adding the core translation files download to the makefile, is there a way to somehow add the translation files for the modules that are in use and for the custom fields as well? 

Ideally I would like to add the needed .po files to the makefile or the profile's .install-file. Any ideas on how to do it?
Have you seen http://zgadzaj.com/drupal-installation-profile-with-multiple-languages ?

Also you can try to export it with Features


  Features
  
  The features module enables the capture and management of features in
  Drupal. A feature is a collection of Drupal entities which taken
  together satisfy a certain use-case.


And for more especific export data


  UUID Features Integration
  
  The UUID Features Integration module provides a mechanism for
  exporting content (nodes, taxonomy, fields) into a features module.
  What's that you say? You thought features was only for configuration?
  This module is meant to be used in the cases where certain pieces of
  content straddle the line between pure content and configuration.
  You've to configure the entity types / bundles to be exportable. Read
  the Documentation for further information.