[fi] Completed Chapter 2.2
[fi] Translated Chapter 2.3
Merge branch 'master' of http://github.com/jukkah/progit
Merge branch 'master' of https://github.com/progit/progit
Merge pull request #478 from jukkah/master

[fi] Translated Chapter 2.3
update typo 注意しなければならいのは ->注意点は
update typo 誰かとかの人 -> 誰かほかの人
Merge pull request #480 from sekaiya/ja2

[ja]chapter 2.4　and chapter 3.5 : update typo
Merge pull request #1 from progit/master

Merge upstream updates