Attaching a diff against current trunk which fixes the following:
- Fixing add-on sources for API changes in Roo 1.2
- Supporting Spring Data Neo4J Layering integration for Roo 1.2
- minor code cleanup and additions of @SupressWarning in some places (this can be reverted if desired)
Note, this change set has not been tested extensively as I am not very familiar with all features of this add-on. Please test against your common use cases. Feel free to add a services layer to your test application to see if it wires properly to the Neo4J persistence layer.