Translate appendix B - JGit
Translate 7.7 "Reset Demystified".
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About&History fixes
Merge pull request #9 from madhead/embedding_git

Translate appendix B - JGit
Translate 7.4 "Signing Your Work".
Merge pull request #12 from dmitry-krasilnikov/master

Исправления About и History
Merge pull request #13 from lyobzik/7.4-signing

Translate 7.4 "Signing Your Work".
Translate 7.7 "Reset Demystified": fix errors according with review.
Merge pull request #10 from lyobzik/7.7-reset

Translate 7.7 "Reset Demystified".