as well as experimental C extension support, and many other
significant new features.
Bump required memory to 384MB, should fix occassional memory
errors when building.
Use the jruby-complete.jar instead of the jruby.jar, seems
to be necessary for C extension support to work correctly.
RSpec is no longer bundled. Additionally, the extra 1.5.3
distfile is no longer needed as the changes have been included
upstream.
OK landry@