Add Lombok 0.2.3.

This includes three fixes:
- Update the ECJ converter from 4.2.2 to 4.4.
- Properly set the native node reference for variable
  declarations.
- Add post-traversal visitor methods
These are included in this pull request for lombok.ast:
https://github.com/rzwitserloot/lombok.ast/pull/8

Change-Id: I91b67a9ea9996cbad9284d9302929d13899d5dd5
13 files changed