Merge pull request #468 from erdemoncel/master

Free programming books in Turkish
Removed the rest of english(en) books from Chinese(zh) list.
Added 2 books to Chinese(zh) list.
Modified MOOC list from Chinese(zh) list.
Ajouté deux livres sur vim.
Merge pull request #469 from jgpacker/master

Removed *en* books from *zh* list, and 2 books added to *fr* list
[ja] +1 Flask sub-section w/2 books, +2 Python books
Merge pull request #470 from luminousspice/ja

[ja] +1 Flask sub-section w/2 books, +2 Python books
Add Android and Linux books
Merge pull request #471 from crushmaster/master

Add Android and Linux books
Fixed link for C++ Cookbook
Merge pull request #474 from yelinaung/master

Fixed link for C++ Cookbook
Fixes issue #472
Merge pull request #475 from breakingcrypto/patch-1

Fixes issue #472
Update free-programming-books.md

Added C# book
[ja] +1 Python book
Merge pull request #477 from luminousspice/ja

[ja] +1 Python book
Update free-programming-books-pl.md
Merge pull request #478 from zawieja/master

Update pl.md : C++
en : Ubuntu Server Guide
Add portuguese translation of "XP from the Trenches", Kniberg
Add japanese translation of "Scrum and XP from the Trenches", Kniberg