[cs] Typos and formulation changes in Ch. 1 up to 1.3 included.
Merge branch 'master' of https://github.com/progit/progit.git
[cs] changes to Chapter 1, section 1.4
Fix typos
Merge pull request #37 from changwoo/ko

오타 수정
[ko] remove a slang.
Update 01-chapter3.markdown
[it] updating chapter6

Reviewed "A SHORT NOTE ABOUT SHA-1"
Merge pull request #739 from harupong/update-ja

[ja] Update translation
[nl] Synchronized translation with SHA-1 3c18779
Merge pull request #742 from Cpt-xx/synchVersions

[nl] Synchronized translation with SHA-1 3c18779
update `git reflog` output to current one
[it] fix error in formating
[it] fix remaining typos
[it] fix space at end of title
switch travis to parallel ci check
travis: add e-mail notification on status change
Apply 60e2618 to ja tree
Apply c418e2e to ja tree
Apply 44936fd to ja tree