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
[es] New java book
Merge pull request #365 from esparta/master

[es] New java book
[ja] Add 5books: C*2, Python*2, Scheme
[ja] Fix escape underscore for md