Conflicts:
	asm/moti/policy_engine.h
	target/target.c
	target/target_xen_vm.c
	target/target_xen_vm_process.c
	tools/spf/README.spf.txt
	tools/spf/spf.c

A quick summary of new features and changes:

  * Split of xen_vm and xen_vm_process drivers into xen_vm driver
    and os_linux_generic personality
  * KVM/QEMU support through a GDB driver, which is pluggable to
    enhance its abilities beyond what GDB stubs can do; naturally there
    is a KVM/QEMU enhancer.
  * Better architecture support, and a register cache data structure.
  * Deliberate support for target events.
  * Improved active probing mechanisms.
  * Expansion of the OS and Process personalities.
  * Mainly speed improvements to dwdebug.