Add IMC'15 paper.

Changelog.txt

@@ -1,3 +1,6 @@
+* 2015-10-30
+	- Added paper ``Examining How the {G}reat {F}irewall Discovers Hidden Circumvention Servers''
+
 * 2015-10-20
 	- Added paper ``CacheBrowser: Bypassing Chinese Censorship without Proxies Using Cached Content''
 	- Added paper ``Seeing through Network-Protocol Obfuscation''

header.tpl

@@ -73,7 +73,7 @@
       (<a href="author_reverse.html">reverse</a>) <a href="author.html">author</a> <br />
       Feedback: <a href="mailto:phw@nymity.ch">phw@nymity.ch</a> (<a
       href="https://nymity.ch/openpgp_public_key.txt">OpenPGP</a>) <br />
-      Last updated: <a href="Changelog.txt">2015-10-20</a> <br />
+      Last updated: <a href="Changelog.txt">2015-10-30</a> <br />
     </div>
   </div>
 </div>

references.bib

@@ -1,3 +1,12 @@
+@inproceedings{Ensafi2015b,
+	author = {Roya Ensafi and David Fifield and Philipp Winter and Nick Feamster and Nicholas Weaver and Vern Paxson},
+	title = {Examining How the {G}reat {F}irewall Discovers Hidden Circumvention Servers},
+	booktitle = {Internet Measurement Conference},
+	publisher = {ACM},
+	year = {2015},
+	url = {http://conferences2.sigcomm.org/imc/2015/papers/p445.pdf},
+}
+
 @inproceedings{Holowczak2015a,
 	author = {John Holowczak and Amir Houmansadr},
 	title = {{C}ache{B}rowser: Bypassing {C}hinese Censorship without Proxies Using Cached Content},