Add support for Mac OS X bundled application

Optional support for Mac OS X bundled application creation. This does not effect the .jar file creation and can optionally be run to generate a Mac OS X application that has the Java runtime embedded, thus not requiring that the Java runtime be downloaded. Also, a proper Mac OS X ICNS file is included so the application will have an icon.

Updated README.md file to describe process to create application and required Third Party support file.