update translated files for transifex
add config file for transifex
change relative path for translated files
Merge branch 'branch-6-4', remote-tracking branch 'upstream/branch-6-4' into branch-6-4
update en file to fr
Merge remote-tracking branch 'upstream/branch-6-4' into branch-6-4
revert locale_dir value
update fr translation
add it translation
update about file for fr
add new langage: el, id, sq, etc.
remove pot files unuseful and add empty file in LC_MESSAGES for each langage
duplicate albanian and greece flag to use the langage ISO code rather the ISO country code
add update of installation in fr
add de langage in both method
revert adding de langage in both method
Merge pull request #79 from yjacolin/branch-6-4

Update translation files and some small correction on i18n process