* aptconfiguration.cc:

* aptconfiguration.cc:
  - include all existing Translation files in the Cache (Closes: 564137)

Previously if APT was executed with a different LC_* all these invocations
needed to rebuild the Cache as too many files were included or missing:
Now the lists-directory is checked for Translation-files and all these
will be included in getLanguages() regardless of the environment setting
(after a "none" so APT will not use them for displaying information).