Basic :scripting:jruby support.

Useful links:

	- https://github.com/jruby/jruby/wiki/Integration-With-JVM-Languages
	- https://github.com/jruby/jruby/wiki/RedBridge
	- https://github.com/jruby/jruby/wiki/CallingJavaFromJRuby
	- https://github.com/jruby/jruby/wiki
	- http://jruby.org/apidocs/org/jruby/embed/ScriptingContainer.html