* include/libvirt/libvirt.h.in, src/libvirt.c, src/driver.h,
src/libvirt_sym.version: New virDomainMemoryPeek API.
* qemud/remote.c, qemud/remote_protocol.x, src/remote_internal.c:
Support for remote.
* src/qemu_driver.c: QEMU driver implementation of API.
* src/test.c: Test driver (null) implementation of API.
* docs/hvsupport.html.in: Document API.
* libvirt.spec.in: New path /var/cache/libvirt for temporary
storage of memory images.
* qemud/libvirtd.init.in: Remove any old temp files in
/var/cache/libvirt on restarts.
* src/Makefile.am: make install creates /var/cache/libvirt.
* configure.in: Detect mkdir -p.