Merge pull request #587 from daftano/master

[it] update 01-chapter9.markdown
Reviewed Riferimenti remoti

Reviewed translation.
Update untranslated parts

to match the latest state of source manual
fix typos
Update 01-chapter1.markdown

Translated section "Local Version Control System"
Update README

Removed earlier "translator" from the text.
Merge pull request #589 from miukoba/ja-fix-typos

[ja] fix typos
Merge pull request #588 from daftano/master

[it] update 01-chapter9.markdown
Merge pull request #590 from fenre/patch-1

Update 01-chapter1.markdown
fix ru 01-chapter4.markdown
[vi] Update chapter 2
add new translation for chapter 2
[vi] Update chapter 2
Merge pull request #592 from tuanva/master

[vi] Update translation for Chapter 2
Merge pull request #591 from bes-internal/patch-1

fix ru 01-chapter4.markdown
[de] Use typographic dash and single/double quote

Instead of - and ", let’s use the typographically correct versions when not in code.
[de] Use Du, Dein instead of du, dein

The README states that this is the preferred spelling.
[de] Use dass, sodass instead of daß, so dass

Sticking to the new spelling.
[de] Use Dir instead of dir

The README states that this is the preferred spelling.
[de] Use ss instead of ß, when appropriate

Sticking to the new spelling.