highlight the existence of git 'tree' object type to distinguish it (e.g. from file system tree)
[ja] Apply 1f57d57a48144a978d9f8b52c38550804297ee1d
Fix invalid ssh URL for all languages.
Updated explanation of ssh protocols. Thanks @GArik
Merge pull request #433 from bpo/fix_ssh_urls

Fix invalid ssh URL for all languages.
[fr] apply 19251807 to fr

Was totally localized so the automatic migration did not work.
[ru] chapter 2: Incorporate changes from commits 716e192 and aa83065

"Add --word-diff option description"
[ru] chapter 4: Incorporate changes from commit 192518071.

"Updated explanation of ssh protocols."
[ja] Improve translation of chapter 9
[ja] Correct a description of .git/info in chapter 9
[ja] Fix a typo in chapter 9
[ru] chapter 2: Translate figures.
[ru] Update chapter 1

Fix some punctuation problems.
Merge pull request #438 from rc5hack/master

[ru] Update chapter 1
Merge pull request #436 from uasi/ja-chapter9

[ja] Improve chapter 9
spelling fixes, translation improvements
Merge pull request #440 from gibas/spelling-fixes

spelling fixes, translation improvements
Merge pull request #439 from GArik/RU

[ru] Sync translation with the original and translate one more figure
[ru] Update chapter 4

Fix some punctuation problems.
Merge pull request #441 from rc5hack/master

[ru] Update chapter 4