Fixing PostgreSQL Ubuntu recipe and some other fixes
Create recipes for local apt repos for Ubuntu Java
Recipe for updating VirtualBox Guest Additions
Update Ruby version
Use HTTPS for Rubygems.org instead of HTTP
Use oabjava script to install Sun/Oracle JDK on Ubuntu
Set Ubuntu repository mirror server
Using new official Vagrant box for Ubuntu 12.04 Precise Pangolin
Adding lab VM for exercises
Updating IDEA recipe for version 12.0.4
Fixing Janus recipe by bumping timeout for slower Internet connections
Fixing gvim recipe for Ubuntu
Fixing base Ruby recipe for Ubuntu
Updating Rails version in recipe
Added receipe for the Apache benchmarking tool ab
Added recipe for up-to-date Gradle installation. The Ubuntu packaged version is old.
Added recipe for Apache Ant
Added recipe for Apache Maven 3
Added additional receipes to the lab VM
Added recipe for up-to-date Node.js installation. The Ubuntu packaged version is old.