[Fix #398] Manually set locale
[Fix #396] Remove the osx trash function

The trash program found at http://hasseg.org/trash is a superior
implementation.
Add Emacs module

Enables Emacs dependency management with Carton.
Ajout du module perl
Désactivation de l'auto-title
Ajout de la fonction psgrep
Merge branch 'master' of https://github.com/sorin-ionescu/prezto