Upgrade Torquebox and JRuby

For best practices, performance, and security compliance, it's helpful to use
the latest versions of libraries. This commit updates Torquebox to 3.1.1 and
JRuby to 1.7.13 as a consequence. The previous version of Torquebox shipped
with JRuby 1.7.8, so this updates these libraries in sync.

Fixes https://tickets.puppetlabs.com/browse/RAZOR-339