move coffeescript-style-guide to the CoffeeScript category in Chinese
Merge pull request #1160 from sunxb10/master

move coffeescript-style-guide to the CoffeeScript category in Chinese
Update free-programming-books-tr.md
Merge pull request #1163 from oguzhantasci/patch-1

Update free-programming-books-tr.md
Remove two duplicates
Update free-programming-books.md

fix typo
Merge pull request #1165 from chimeno/patch-1

Update free-programming-books.md
Merge pull request #1164 from jochenvdv/remove-duplicate

Remove two duplicates
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included vim section in index
Added android screencast
Merge pull request #1166 from todipratik/master

included vim section in index and android screencast added
Update free-programming-books-es.md

libro sobre Debian GNU/Linux para administradores
Merge pull request #1167 from oswaldo-O/patch-1

Update free-programming-books-es.md
Update free-programming-books.md
Merge pull request #1168 from HashanP/patch-1

Update free-programming-books.md
Update free-programming-books.md
Merge pull request #1169 from xmonader/patch-1

Update free-programming-books.md
Fixed formatting
Added Understanding Linux Kernel

Added understanding linux kernel pdf to the free-programming-books.md