Remove obsolete scripts from Rails <3.0 and RSpec
Remove trailing whitespaces and fix some fr entries
Replace 'Echéance' by 'Échéance'

Capital letters should be accentuated when needed even if the usage of
poor quality digital typography has disolved its usage. The usage of non
accentuated capital letters can be considered as orthographic mistake.
Merge pull request #139 from nibua-r/fix-french-tr

Fix some french translation entries