On Wed, Dec 4, 2013 at 5:30 PM, Stefan Monnier <monnier@iro.umontreal.ca>wrote:

> C-. and C-,  (the logic behind those is that , and . are just below <
> and > in the US keyboard).
>

These keys do not exist in -nw sessions, and as of revno 115388 I see
no alternative bindings for icomplete-{forward,backward}-completions.