[Tails-dev] Torbirdy version bump for Tails 3.7?

Package xul-ext-torbirdy in Tails 3.6.2 is version 0.2.1. The
current version is 0.2.5.

* Changelog:
http://metadata.ftp-master.debian.org/changelogs/main/t/torbirdy/torbirdy_0.2.5-1_changelog

Version 0.2.1 was released Thu, 01 Dec 2016!

There are a number of important changes since then. Please consider
updating to the newest release.