Add cli app pstree
Need a directory for caching ssh sessions
Use rowanj's fork of GitX instead of brotherbard's
~/.ssh/sockets permissions was overwritten

The setup of ~/.ssh was done later in the recipe, causing the mode
to be overwritten.
Add the HipChat native application
Add rbenv gem rehash plugin

This will automatically do a rbenv rehash after installing a new gem.
Refactor /Applications/* directory creation
Add Mailplane application
Add the latest IntelliJ EAP: Cardea-IU-130.555
Update VirtualBox (4.1.18 --> 4.2.12)
Add setup of gradle configuration

This links the gradle configuration files to the ones saved into
Dropbox.