API refactoring to help with parsing classes for automatic ruby generation
API refactoring for java2ruby simple parser
New plugin tests (payment/notification):
- Allow calls from java2ruby
- Allow ruby to receive ExtBusEvent
- Allow ruby tomake (java) killbill APIs calls both from API call abd event context
Merge branch 'master' of github.com:killbill/killbill
Fix jruby initialization to start synchronously during Kill Bill start lifecycle