Giant refactorizing for localization

It is me again, I rewrote almost every layouts in order to have localization.

I tried not to broke anything, but it is pretty hard to confirm that even if this should be fine.

I removed almost every hard coded strings which have no parameters. Application is thus almost fully translatable to other languages.

If this PR is merged, something about **stop hard-coding texts** in the guide lines would be great ;-)
arg, screw my script! If you want to revert the id changes, you are free to do. Otherwise I will do it as I broke it in the first place...