Merge pull request #264 from FredBlain/master

small typo fix.
Gaia view: add inconsistent translations
Merge pull request #265 from flodolo/gaia_inconsistency

Gaia view: add inconsistent translations
Update p12n extract and view (remove metro, OS portability)

p12n_extract:
* remove Metro control
* remove concatenations for paths, use os.path.join and os.sep
* fix coding style consistency (parenthesis, quotes, and instead of &)

Remove Metro from view
Merge pull request #266 from flodolo/metro_p12n

Update p12n extract and view: remove metro, improve OS portability
Add son & mai locales to Gaia 2.0