[Catalyst] Translations for error message

[Kiki]

Kiki wrote:
> Stéphane Payrard wrote:
>   
>> Sebastian Riedel a écrit :
>> | You may know the built in error screen you get when not in debug mode.
>> | It says "Please come back later" in multiple languages, but so far we  
>> | have not that many translations.
>> | 
>> | Please add translations for other languages to the list.
>> | 
>> |      (en) Please come back later
>> |      (de) Bitte versuchen sie es später noch einmal
>>        (fr) Revenez plus tard, s'il vous plait.
>>     
Oops, missed one special character:

(ro) Vă rugăm să reveniţi mai târziu.