Added support of Intel AMT
Do not power off during AMT reset
Move "use LWP" to amt block

Novaboot should not fail when LWP is not installed and AMT is not used.
Whitespace and indentation fixes
AMT: cleanups, simplifications
Update --amt documentation
Merge branch 'amt'

Conflicts:
	README.md
	novaboot
Make example buildroot use /dev/console for getty

This way, getty appears wherever the user sets console kernel
command line.