bug#21501: new Emacs functions for capitalizing text intelligently

[Eli Zaretskii]

> From: Zachary Kanfer <zkanfer@gmail.com>
> Date: Mon, 21 Sep 2015 14:52:01 -0400
> Cc: 21501@debbugs.gnu.org
> 
> Here's an updated patch with Eli's comments addressed. Now, these new commands
> seem to have all the functionality of the existing *-region and *-word
> commands.

Thanks, I pushed them.

Note that with this contribution you've exhausted your limit of code
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Thanks.