[7u4] Review request for CR 7134730

[Greg Brown]

This is a request to push the initial changeset supporting the app bundler Ant task. Webrev is here:

http://cr.openjdk.java.net/~gkbrown/7134730/webrev.00/

Note that this code is not currently integrated into the build. An outstanding to-do is to move the compilation of main.m from build.xml to a makefile and add this to the build. These changes will be pushed in a follow-on changeset.

Thanks,
Greg