Fixing invalid link to a Ruby resource
Re-ordering Ruby resources with official resources at top
Add functional programming with Clojure MOOC
Move to free courses
Added PlugIn Tapestry book (spanish)

Added PlugIn Tapestry book, a book in spanish about the framework Apache Tapestry for programming web applications in Java.
Fix some Japanese books for C++

- cpprefjp moved to https://sites.google.com/site/cpprefjp/
- add the author of 'C++11: Syntax and Feature'
Merge pull request #1252 from picodotdev/master

Added PlugIn Tapestry book (spanish)
Merge pull request #1254 from rhysd/fix/japanese-cpp

Fixed some Japanese books for C++
Update free-programming-books-bg.md
Merge pull request #1255 from interdrift/patch-1

Update free-programming-books-bg.md
Update free-programming-books.md
Update free-programming-books.md
Update free-programming-books.md

Added in alphabetical order
Update free-programming-books.md
Merge pull request #1256 from sahitya-pavurala/master

Update free-programming-books.md
Merge pull request #1251 from hongchangwu/master

Add free course - Functional programming with Clojure
looks good, thanks!
Merge pull request #1243 from akshaymohite/master

Fixed a broken link + Reordering Ruby resources
thank you for fixes
Add free Scala courses
Fix link
Add Learn Python, Break Python to English list.