[ESS] rewire C-RET to M-RET

[Stephen Eglen]

On Wed, Nov 06 2013, Vitalie Spinu wrote:

> Oh, that is embarrassing. It is one of our legacy code that was snicking
> M-RET into ess-mode hook. It was overwriting your customization. I
> corrected that.
>
> More generally. I don't like M-RET binding. It is a nice key for users
> to set for whatever they want. We have "C-c C-e /" for
> ess-set-working-directory which does the same thing in a bit more
> user-friendly way. 
>
> Shall we remove M-RET?

I think M-RET was my old cold, inspired from the same keybinding in
*shell*

(defvar shell-mode-map
    ...
    (define-key map (kbd "M-RET") 'shell-resync-dirs)

I don't use it much though, so if its a big pain, I won't object to its
global unbinding.

Stephen