* include/libvirt.h include/libvirt.h.in: added intialization function
* include/virterror.h src/virterror.c: one more error code
* src/internal.h: first part of Jim's format checking
* src/libvirt.c src/xen_internal.[ch] src/xend_internal.[ch]
  src/xs_internal.[ch]: initialization and registration of drivers
Daniel

  src/virterror.c: created a new module related to Xen Store accesses
* src/libvirt.c src/xen_internal.[ch] src/xend_internal.[ch]:
  nearly completed the separation of the code from the different modules
Daniel