Install syslinux-efi: since syslinux 3:6.03~pre1+dfsg-2, that's where the EFI bootloader lives.
Adapt syslinux EFI bootloader path to cope with changes in the Debian package.
Add test for UEFI boot, using OVMF.
Fix setup instructions.
Merge branch 'stable' into test/7231-uefi-boot

Conflicts:
	wiki/src/contribute/release_process/test/setup.mdwn
Pin packages from testing to 500, so that they can be upgraded.
Merge branch 'devel' into bugfix/7173-upgrade-syslinux
Use sudo instead of gksudo for running tails-upgrade-frontend (Closes: #7431).
Run tails-persistence-setup with sudo instead of gksudo.

This way, stderr is output to the terminal (when running t-p-s on the
command-line) or to .xsession-errors (otherwise), which eases debugging
and error reporting. This mitigates #7623, without resolving it entirely yet.
Forward addition arguments to t-p-s from its wrapper.

This is one more step toward resolving #7623: the sudo configuration still
prevents one from passing arbitrary arguments, but at least the wrapper would
support it.
Allow the desktop user to pass --verbose to t-p-s via sudo (Closes: #7623).
Merge branch 'devel' into bugfix/7173-upgrade-syslinux
Merge branch 'bugfix/7173-upgrade-syslinux' into test/7231-uefi-boot
Merge branch 'devel' into bugfix/7173-upgrade-syslinux
Use Test::Unit::Assertions instead of our home-made assert().
Test suite: use assert_equal wherever it makes sense.

... which allows us to drop many hand-made error messages, as assert_equal does
mostly the same automatically => less duplicate information to maintain.
Enable VirtualBox guest additions by default (Closes: #5730)
Remove SSL outproxy from eepsite tunnel

I2P 0.9.15 adds the default SSL proxy to the tunnel listening on port 4444.
This commit will disable the outproxy, undoing the upstream change in
https://github.com/i2p/i2p.i2p/commit/6517fe751508936c56b9d58b6301506414ffb3e6.
add anchor to regex
Revert "$HOME(pidgin): hide formatting toolbar" (Closes: #7356)

This reverts commit c4a2668bdf49d803e32e3cfc94825115461a9d50.

Having the formatting toolbar displayed in Pidgin is the original default, and
it makes the OTR status more explicit by displaying it with words.

Without this toolbar, the OTR status have to be inferred either from the chat
log, or from the small logo on the right of the OTR menu.