Add changelog entry for 0.17.1.

debian/changelog

+tails (0.17.1) unstable; urgency=low
+
+  * Iceweasel
+  - Upgrade to Iceweasel 17.0.4esr-0+tails1~bpo60+1.
+
+  * Hardware support
+  - Update Linux to 3.2.39-2.
+    It includes the drm and agp subsystems from Linux 3.4.29.
+
+  * Minor improvements
+  - Remove Indymedia IRC account, until we ship a version of Pidgin
+    with SASL support, that is when Tails is based on Wheezy.
+
+  * Build system
+  - Don't ship the wiki's todo and bugs on ISO images.
+
+ -- Tails developers <amnesia@boum.org>  Thu, 21 Mar 2013 18:54:11 +0100
+
 tails (0.17) unstable; urgency=low
 
   * New features