Prepare Changelog for 0.7.1 release.

debian/changelog

-tails (0.7.1~1) UNRELEASED; urgency=low
-
-  ** SNAPSHOT build @736bd763dce037d96696c7cafabedd7daff7e318 **
+tails (0.7.1) unstable; urgency=high
 
   * Vidalia: new 0.2.12-2+tails1 custom package.
 
@@ -55,7 +53,7 @@ tails (0.7.1~1) UNRELEASED; urgency=low
   - Install eatmydata in the chroot.
   - Convert ikiwiki setup files to YAML.
 
- -- Tails developers <amnesia@boum.org>  Fri, 29 Apr 2011 14:19:17 +0200
+ -- Tails developers <amnesia@boum.org>  Fri, 29 Apr 2011 17:14:53 +0200
 
 tails (0.7) unstable; urgency=low