[ESS] rewire C-RET to M-RET

[Vitalie Spinu]

 >>> Martin Maechler on Thu, 7 Nov 2013 21:57:33 +0100 wrote:

[...]

 >> Shall we remove M-RET?

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

So it is not arbitrary. Good then. Let's leave it like it is.

Thanks, 

   Vitalie