Update kibana.gemspec

Removed comment which caused Psych to produce a parser error.
added support for warble. WAR can be created with "rake war" or "warble war [executable]"
added warble dependency
Update README.md

Added JRuby Doc
Merge branch 'jruby' of https://github.com/falkenbt/Kibana into jruby
Update README.md
Update README.md
Update README.md
Merge pull request #266 from falkenbt/jruby

Jruby standalone war support