Release Name: 0.1.1

Notes:
Support for subdirectories in 'app/models' and 'app/controllers'


Changes:
- Changed default graph label fontsize to 14.
- Better error handling.
- Minor cosmetic changes.
- New way to load classes, supporting subdirectories traversal.
  (Inspired in RAV, http://rav.rubyforge.org/)
- RailRoad version included in diagrams' label.