Install obfs4proxy instead of obfsproxy.

The former supports obfs2, obfs3 and obfs4. The latter doesn't support obfs4.

config/chroot_apt/preferences

@@ -186,6 +186,10 @@ Package: monkeysign
 Pin: release o=Debian Backports,n=wheezy-backports
 Pin-Priority: 999
 
+Package: obfs4proxy
+Pin: release o=TorProject,n=obfs4proxy
+Pin-Priority: 990
+
 Package: seahorse-nautilus
 Pin: release o=Debian Backports,n=wheezy-backports
 Pin-Priority: 999

config/chroot_local-packageslists/tails-common.list

@@ -173,7 +173,7 @@ nautilus-gtkhash
 network-manager-gnome
 ntfs-3g
 ntfsprogs
-obfsproxy
+obfs4proxy
 libreoffice-calc
 libreoffice-draw
 libreoffice-gnome

config/chroot_sources/torproject-obfs4proxy.binary

+torproject-obfs4proxy.chroot
\ No newline at end of file

config/chroot_sources/torproject-obfs4proxy.chroot

+deb http://deb.torproject.org/torproject.org obfs4proxy main