- Added 'final' to all not overridden methods.
  - Moved from 'protected' to 'private' fields.
  - Removed 'public' to interface methods.
  - Removed 'public static final' to interface fields.
  - Removed unused import statements.
  - Added @SuppressWarnings("serial").
  - Added missed brackets for if/else statements.
  - Added getter methods into Twitter JAXB-based classes.

* Replaced 'USTL' by 'University of Lille 1'.
* Updated copyright date to 2010.
* Cosmetic updates.