Fix cleanup tools

Adjust for manual move
Do not assume that tmpfile and target are on the same filesystem and
use copy instead of rename.

Change-Id: Ide16e541032f5bcc3ea462a9347faebdc5d7d670
Check for hardware virtualization support

Added initial instructions for verifying the presence of hardware
virtualization support and the relevant KVM modules.

Change-Id: If7edb30bd32111a09320a62af2191c21990c9776
Merge "Fix cleanup tools"
Merge "Check for hardware virtualization support"