Merge pull request #129 from gmorel/french_translation

Adding some French translation for backoffice
Fixed issue #123. Introduced NumberFormat::formatStandardNumber()
Merge branch 'master' of https://github.com/thelia/thelia
Merge branch 'master' of https://github.com/thelia/thelia into french_translation

# By Franck Allimant
# Via Franck Allimant (2) and Manuel Raynaud (1)
* 'master' of https://github.com/thelia/thelia:
  Fixed issue #123. Introduced NumberFormat::formatStandardNumber()
Adding translation for Backoffice
Adding translation for Backoffice