translate some text for chinese.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update zh chinese lang

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Shouldn't set last_login at registration

As per #623
Merge pull request #629 from appleboy/patch

update Chinese language.
Merge pull request #628 from dev-ggallon/develop

Update French translation
Merge pull request #630 from nathanpitman/patch-2

Shouldn't set last_login at registration