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
Added a book on Meteor
Merge pull request #1171 from AndreiCurelaru/master

Added a book on Meteor
Merge pull request #1170 from vjananth89/master

Added Understanding Linux Kernel
removed ULK
Merge pull request #1173 from vjananth89/master

removed Understanding Linux Kernel
Apprendre jQuery
Merge pull request #1174 from AndreiCurelaru/master

Added : "Apprendre jQuery"  French side
Added Try Racket tutorial to interactive section
Added How to Design Programs to Racket section.