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Conflicts:
	config/chroot_local-includes/etc/firewall.conf

Closes: todo/have_archive_manager_support_rar_again

We'll want to remove this once we ship file-roller 3.6 or newer:
https://tails.boum.org/todo/remove_unrar-free/

Set the UDisks UDISKS_PRESENTATION_HIDE which is "a hint to presentation level
software that the device should not be shown to the user.

This closes todo/persistence:_hide_or_fix_TailsData_volume.

Thanks to adrelanos <adrelanos@riseup.net> for the suggestion.

This fix the System Monitor applet, offers a nice graphical interface to
control memory usage and should weight around 2 MB after compression.

The 'mirrorlist' patches have finally been merged in upstream Ikiwiki. So
instead of building Ikiwiki by hand, we can now install the package directly
from Debian unstable.

We used to get it from 'testing', but the version in Wheezy is multiarch
enabled now. So let's carry on another (trivial) backport.

Alternate title: 'for those who care about channels 12-13'.
Details: http://womble.decadent.org.uk/blog/wireless-regulation-in-squeeze.html

  * Use correct test operators.
  * Generate language codes of available locales at package build time.
  * Read list of language codes from where we have saved it
    at package build time.
  * Drop tails-lang-helper, not used anymore.
  * Do not compile locales at login time anymore.
    Tails now ships locales-all.

The default is to save them at ~/Mail, which isn't included in our
current Claws Mail persistence preset.

This version, which works for us, will soon be replaced in testing by another
one that does not work for us.

Revert "Install plymouth from testing."
This reverts commit fbb161af.