Copy out the old value when processing CR0/CR3/CR4 events
Set vcpu context on 32-bit PV Xen domains as well
Merge pull request #141 from Zentific/extra_cr_info

Copy out the old value when processing CR0/CR3/CR4 events
Merge pull request #144 from tklengyel/pv32_setvcpureg

Set vcpu context on 32-bit PV Xen domains as well
Cleanup Windows internals
Merge pull request #142 from tklengyel/windows_cleanup

Cleanup Windows internals
Introduce arch_interface to abstract interface specific functions away.
Fix shm-snapshot compatibility