Sprinkle some comments about build system.
Add metta to ALL target.
Some stuff for hosted build still missing.
Make buildit script executable.
Add progress messages.
Manage dependencies manually for now - can't figure this out in cmake.
Add logging verbosity control method.
Nucleus is actually a part of the init.img and need not be copied.
Use the new logger facility.
Run bootup all the way to root_domain after PCI bus scan.