added content for MATLAB programming

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

Updating the list to include free Salesforce/Force.com books

Salesforce developers actually have a great resource on Developer Force - http://developer.force.com/ - but I wanted to add some of the books Salesforce has released to this list to share with everyone. Salesforce's languages are Apex (similar to Java) and Visualforce (similar to HTML)

Adding Java EE 7 Tutorial

retroingénirie binaire->c

Adding "A pragmatic guide to Backbone.js apps"

lisp book

Links are not rendered correctly on http://resrc.io/

Update free-programming-books.md

Added some books for Erlang

Added "Guide"

[JA] Add Hatena Textbook Series

Add link to HTML5 For Web Designers

add a chinese name to some books

Share my local updates back to the upstream

Adding Apple's Start Developing iOS Apps Today tutorial.

update