l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed)

Generate po/git.pot from v1.8.3-rc0-19-g7e6a0 for git v1.8.3
l10n round 2.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
l10n: Update Swedish translation (2080t0f0u)

Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
l10n: Update Vietnamese translation (2080t0f0u)

Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
Merge remote-tracking branch 'vi-vnwildman/master'

* vi-vnwildman/master:
  l10n: Update Vietnamese translation (2080t0f0u)
l10n: de.po: translate 44 new messages

Translate 44 new messages came from git.pot update in
c6bc7d4 (l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed)).

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
l10n: zh_CN.po: translate 44 messages (2080t0f0u)

Translate 44 new messages came from git.pot update in c6bc7d4
(l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed))

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Merge git://github.com/git-l10n/git-po

* git://github.com/git-l10n/git-po:
  l10n: zh_CN.po: translate 44 messages (2080t0f0u)
  l10n: de.po: translate 44 new messages
  l10n: Update Vietnamese translation (2080t0f0u)
  l10n: Update Swedish translation (2080t0f0u)
  l10n: git.pot: v1.8.3 round 2 (44 new, 12 removed)
remote-bzr: fix for disappeared revisions

It's possible that the previous tip goes away, we should not assume it's
always present. Fortunately we are only using it to calculate the
progress to display to the user, so only that needs to be fixed.

Also, add a test that triggers this issue.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-helpers: trivial cleanup

The comment was copied from hg-fast-export, not used anymore.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Update draft release notes for 1.8.3

Signed-off-by: Junio C Hamano <gitster@pobox.com>