Background:
On the Mac folders that end with app are packages whose content is not shown in the browser.
Apps have a special layout. This is preserved here.

Instructions:

Building the App:
Info.plist is the "app" control file.
Use Ant to build the "app" into the installation target directory.
This does two things:
1) It updates the release version number for the BibleDesktop and JSword jars.
2) It puts the jars in BibleDesktop.app/Contents/Java

Building the Distribution:
DMG is a Mac Disk Image that can only be built on the Mac.
It is the preferred way of distributing Mac applications.
The easiest way to build a new DMG is to use an old one, replacing BibleDesktop.app with a new one.