I will be working more with the Ruby gem roo, and also jruby. I'm looking forward to it and I believe that my teammates also welcome this opportunity.
To add a .jar file (or a directory of them) to the IntelliJ filepath, in your module dependancies tab (in the project structure dialog) add a "Module Library". There you can select a Jar Directory (from your local computer) to add. Then make sure the run profile is using the Classpath and JDK of the correct module when it runs (this is in the run config dialog).
In Java, the Date and GregorianCalendar objects are verboten when following best practice unless you have a "good reason" (i.e. not ignorance or laziness) and really Jodatime is much better and more intuitive anyway.
I've been reading through the documentation of guava, which Google's favorite java libraries.
Axure for wireframes is doing good things to my understandings of stories right now, and it seems pretty simple for the analysts to use.