'rake/gempackagetask' is obsolete; use 'rubygems/package_task'
Use require_relative, as Ruby no longer includes '.' in LOAD_PATH
Fix namespacing of references to Rubinius' Code Tools
Make specs pass with new Rubinius runtime.

(Used rbx-master, soon to be rbx-2.3.0)
Merge pull request #3 from jemc/master

Update to new Rubinius VM runtime environment