How to translate Arduino 1.0.5?

I wanted to translate the Arduino 1.0.5 IDE, but I'm a bit confused. As far as I could get there is a webpage to suggest translations:

https://www.transifex.com/projects/p/arduino-ide-15/

But I think that this is just for Arduino 1.5, and not the previous version, 1.0.5.

I'm not sure if the translations are backwards compatible and the translations made for 1.5 IDE work for IDE 1.0.5.

Can someone bring some light about all this? Thanks in advance.