Fix the accented names int Aase2012a.

The "\~{n}" sequence was meant to represent 'ñ', but instead was
breaking the name (maybe it was interpreted as a nonbreaking space?).
CensorBib was rendering "Jorge Oca\~{n}a Molinero" as
	Jorge Oca Molinero
and BibTeX (with IEEEtranS.bst) as
	J. O. na Molinero

"\'{A}lvaro D\'{i}az" was for some reason not being split into a first
and last name. CensorBib had just
	Díaz
and BibTeX had
	Álvaro Díaz
(note the non-use of a first initial in the BibTeX case; after the fix
it becomes "Á. Díaz").

Putting the braces on the outside fixes both cases.
http://www.tex.ac.uk/FAQ-bibaccent.html

Actually only "\'{A}" and "\~{n}" needed the change, but do "\'{i}" too
for consistency.

Signed-off-by: Philipp Winter <phw@nymity.ch>

Changelog.txt

@@ -1,6 +1,7 @@
 * 2017-08-28
 	- Added paper ``FilteredWeb: A Framework for the Automated Search-Based Discovery of Blocked URLs''
 	- Updated paper ``Government mandated blocking of foreign Web content''
+	- Updated paper ``Whiskey, Weed, and Wukan on the World Wide Web: On Measuring Censors' Resources and Motivations''
 
 * 2017-08-21
 	- Added paper ``Measuring Decentralization of Chinese Keyword Censorship via Mobile Games''

references.bib

@@ -565,7 +565,7 @@
 }
 
 @inproceedings{Aase2012a,
-	author = {Nicholas Aase and Jedidiah R. Crandall and \'{A}lvaro D\'{i}az and Jeffrey Knockel and Jorge Oca\~{n}a Molinero and Jared Saia and Dan Wallach and Tao Zhu},
+	author = {Nicholas Aase and Jedidiah R. Crandall and {\'A}lvaro D{\'i}az and Jeffrey Knockel and Jorge Oca{\~n}a Molinero and Jared Saia and Dan Wallach and Tao Zhu},
 	booktitle = {Free and Open Communications on the Internet},
 	publisher = {USENIX},
 	title = {Whiskey, Weed, and Wukan on the World Wide Web: On Measuring Censors' Resources and Motivations},