Review request: module graph clean up

[Mandy Chung]

On 11/9/11 8:28 AM, mark.reinhold at oracle.com wrote:
> For now, java.util.prefs should remain in the base module.
Looking at the preferences implementation further, I realize that
preferences for Unix are stored in the file system in XML format.
This might require further work to eliminate this XML dependency
before we can move it back to the base module.

For now, we could move it out from the desktop module and keep
it as a separate module and move it back to the base module when we
eliminate its XML dependency.

Mandy