Hypercube, issues #426, #428, #429

[keomabrun]

• 426 robustess du mot de passe https://dev.yunohost.org/issues/426

• 428 verification FQDN https://dev.yunohost.org/issues/428

• 429 tiny traduction modif https://dev.yunohost.org/issues/429

[jvaubourg]

Thank you so much @keomabrun! I check and merge your patch ASAP!