privat/nit — pull request #449 by itch76 (2014-05-08 19:05:36+00:00)
Title: Opts : Improvement of the opts module (INF7845 sesion work)

- fixed some syntax and added some comments
- added the possibility to hide an option
- added dependencies (with a specific label, or not) between options
- added a simple test file to show how dependencies works