bug#16346: 24.3; electric-pair-mode close-paren issue

[Stefan Monnier]

>> I think the idea is fine, but using post-self-insert-hook turns out to
>> be a bad idea, I think (tho I liked it, initially).
>> Could you try and re-implement it as a minor mode that enables
>> eldoc-mode and tweaks eldoc-message-commands buffer-locally, to see if
>> that works better?
> The following patch seems to do it.  Comments?

Looks good from here.  How do you like its behavior?


        Stefan