Return kpgd for pid == 0.
Fixing debug message.
Searching PsActiveProcessList for sysproc.

The System proc was being skipped in some circumstances by the
extra flink traversal.  A call to eprocess search has been
added to handle the case that the skip was intended for.

The value being used for init_task was also doing an extra flink
traversal.
Merge pull request #214 from awsaba/kpgd_method0_fix

Fix find_kpgd_method0 for live VMs