[JA] Add 3 Clojure books and an Android book

Update free-programming-books.md

- Added some magazines.

- Added the portuguese list of books/magazines;
- Brazilian and Portuguese lists are now diferenciated;

- ASP.NET MVC book is represents a deprecated version of ASP.NET MVC;
- Added JavaScript Garden tutorial;

Another Erlang programming book that isn't free!

Erlang programming book is not free!

Add some german books by Boris Schäling

Add "The Boost C++ Libraries", Boris Schäling

[JA] Add Sections: Linux, Maven, Mercurial, SQL

Adding Grammar Correction and Capitalization

BASH and GIT links

Adde the Apigee 'Web API Design' ebook to the 'Software Architecture' list.

[JA] FIX Formatting & ADD sections: Smalltalk, sed, Sather

retroingénierie python

Update free-programming-books.md

added content for MATLAB programming

Fixing a broken link in the Index to properly link to the section below ...