fixed bug in guid generation that caused erts to crash
fixed bug in guid generation that caused erts to crash

This resolves a bug in erts that caused erts to have fits. It also generates more friendly guids.

ericbmerritt/sinan,erlware-deprecated/sinan,erlware-deprecated/sinan,ericbmerritt/sinan,ericbmerritt/sinan,erlware-deprecated/sinan