wet-boew/wet-boew — pull request #610 by nschonni (2012-10-24 17:33:21+00:00)
Title: No gems in jar

Since some gems we use don't support running inside the jRuby jar, the compilation step can be skipped.
- Reuse the jruby jar between gem version changes
- Keep downloaded gems for reuse
- Hash on only the gem properties when checking if a rebuild is required