Alphabetized Java section
Removed duplicate link
Added "Hibernate 4 Example Programs"
Added "The ABC of PDF with iText: PDF Syntax essentials"
Added "Leaflet Tips and Tricks: Interactive Maps Made Easy"
Added "Backbone Tutorials: Beginner, Intermediate and Advanced"
Added "Mobile Developer's Guide to the Galaxy"
Added "Record-Playback Test Automation: Sahi & Selenium IDE: Critical Evaluation of Record-Playback Automation Tools"
Added "PDQ: Pretty Darn Quick: An Agile, All-Purpose Methodology"
Added "Practicing Domain-Driven Design"
Added "Marionette Exposé: Learn to write modular Javascript applicatons using Backbone Marionette and RequireJS/AMD"
Added "How to Design Faceted Search: The Complete Guide to Designing Faceted Search User Interface"
#616
Merge remote-tracking branch 'upstream/master'
[es] Adding node.js to the list.
Merge pull request #626 from matysanchez/master

[es] Adding node.js to the list.
Add bunch of interactive tutorials
Add githug tutorial (in the shell)
Add Learn Linux The Hard Way guide
Merge pull request #627 from JIghtuse/master

Add more interactive tutorials and guide on Linux