[FREELDR]

[FREELDR]
- Use a list of possible operating system method loading to load ReactOS / ROS-Setup / Windows / Linux or booting from a disk / partition ..., instead of using a (huge) if () else if () ... instruction.
- Modify the corresponding functions to take into account for this new functionality.
- Allow having a live + boot cd if needed, in a elegant way.

svn path=/trunk/; revision=57899