[JA] Add Clojure section with 3 books
[JA] Add an Android Secure Coding book
[JA] Update credits of 2 books
Merge pull request #355 from luminousspice/ja

[JA] Add 3 Clojure books and an Android book
Added: Messaging as a Programming Model
Added some magazines and one book.
Merge pull request #357 from breakpo1nt/master

Added: Messaging as a Programming Model
Merge pull request #358 from BlueKore/patch-1

Added some magazines and one book.
Update free-programming-books-pt_PT.md
Update Real World OCaml link, add few books
[es] Added Jorge L. Ortega Arjona notes and tutorials about Teorical Computational Science, Java, algorithms & data structures
Merge pull request #360 from BlueKore/patch-1

Added some books and more magazines.
Merge pull request #359 from JIghtuse/master

Update Real World OCaml link, add few books
Merge pull request #361 from esparta/master

[es] new spanish books about CS, Java, Algorithms & data structures
Added graph theory book
Adicionando a apostila da caelum sobre ruby com rails
Merge pull request #362 from mosampaio/patch-1

Adicionando a apostila da caelum sobre ruby com rails
corrected index
Merge pull request #363 from Leandros/patch-1

corrected index
Merge pull request #364 from tia510/master

Added graph theory book