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Upgraded to JDK 1.7, Lucene 4.7.0
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New OS X app bundler

Oracle JDK 1.7 has its own Mac OX app bundler. Since the application
now uses Java 1.7 this bundler is used to generate the app.

See the following for usage/details:

http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/packagingAppsForMac.html
https://java.net/projects/appbundler/pages/Home
http://stackoverflow.com/questions/14806709/application-is-using-java-6-from-apple-instead-of-java-7-from-oracle-on-mac-os-x