If you want to have locales in your instance of input do the following:
svn co https://svn.mozilla.org/projects/reporter/locale
cd locale
./compile-mo.sh .
To update the localizations do the following:
pushd locale
svn revert -R .
svn up
popd
./manage.py extract; ./manage.py verbatimize --rename; ./manage.py merge
pushd locale
svn commit -m 'Extracted strings'
popd