Print which ISOs are used in the appropriate hooks.

If no old ISO was set, rbuy would fail in an ugly way ("can't convert
nil to string") before our checks in the hooks, which has more
informative error messages.
Add missing tag to hook.
Move @old_iso hook to a later point.

This pedandtry keeps the old reporting order of the "normal" ISO
first, then the "old" ISO.
Merge branch 'feature/linux-3.10-1' into stable
Merge branch 'master' into devel
Add changelog entry for upcoming release.
Send Whisperback reports to tails-bugs@boum.org
Merge remote-tracking branch 'origin/feature/tails-bugs' into stable
Install Linux 3.10-2 from sid.
Add tails-bugs public key
Do not exclude tails-bugs.key.
Merge remote-tracking branch 'origin/feature/tails-bugs' into devel
Merge remote-tracking branch 'origin/feature/tails-bugs' into stable
Merge remote-tracking branch 'origin/test/fix-iso-reporting' into devel
Merge remote-tracking branch 'origin/test/fix-iso-reporting' into stable
Don't torsocksify Pidgin

Instead we disable Pidgin's GNOME integration to get the "Global proxy
configuration", which we set to use Tor.
Use new consistent persistence path for additional software.

The consistent path implies that there can only be one unlocked
persistence directory, so we also simplify the script by removing the
parts dealing with mulitple lists.
Merge remote-tracking branch 'origin/bugfix/i2p-irc-in-pidgin' into stable
Additional software: point to logs in upgrade failure
Fix typo in notification