Yeah, I figured after... I don't think I can get the previous comportment back without moving usage code, which would be counterproductive.

Altough, when a command is not found by the manager, the prefix is not used (see [here](https://github.com/Ribesg/Alix/blob/master/src/main/java/fr/ribesg/alix/api/bot/command/CommandManager.java#L39) and [here](https://github.com/Ribesg/Alix/blob/master/src/main/java/fr/ribesg/alix/api/bot/command/CommandManager.java#L181))

The final decision is up to you.