virExec will write out the pid of the daemonized process only. Use this
in the QEMU driver, rather than QEMU's pidfile, so we can catch errors we
might miss if the emulator bails early.

Wraps __virExec with the VIR_EXEC_DAEMON flag. Waits on the intermediate
process to ensure we don't end up with any zombies, and differentiates between
original process errors and intermediate process errors.

built-in TODO list for each driver.  Also rip out the internal getURI method;
it is never used by any of the drivers, and was buggy to boot.

* qemud/qemud.c src/cgroup.c src/uml_driver.c src/util.c: close
  some potential FILE * leaks
Daniel

* include/libvirt/libvirt.h include/libvirt/libvirt.h.in
  src/driver.h src/libvirt.c src/libvirt_public.syms
  src/lxc_driver.c src/openvz_driver.c src/qemu_driver.c
  src/test.c src/uml_driver.c: add the public APIs for
  virNodeDeviceDettach virNodeDeviceReAttach and virNodeDeviceReset
  and extends the driver structure accordingly.
Daniel

* qemud/qemud.c (GET_CONF_STR): Use virStrerror, not strerror.
* qemud/remote.c (remoteDispatchDomainBlockPeek): Likewise.
(remoteDispatchDomainMemoryPeek, remoteDispatchAuthSaslInit): Likewise.
(remoteDispatchAuthPolkit): Likewise.
* src/lxc_container.c (lxcContainerAvailable): Likewise.
* src/network_driver.c (networkStartNetworkDaemon): Likewise.
(networkShutdownNetworkDaemon): Likewise.
* src/qemu_conf.c (qemudExtractVersion, qemudNetworkIfaceConnect):
* src/storage_conf.c (virStoragePoolLoadAllConfigs): Likewise.
* src/storage_driver.c (storagePoolUndefine): Likewise.
* src/uml_driver.c (umlStartup, umlStartVMDaemon): Likewise.
* src/util.c (virFileReadAll): Likewise.
* src/uuid.c (virUUIDGenerate): Likewise.
* src/xen_internal.c (get_cpu_flags): Likewise.

* src/uml_driver.c (umlStartVMDaemon): Don't print raw errno value.
* qemud/remote.c (remoteDispatchAuthSaslInit): Likewise.

* src/domain_conf.h src/lxc_driver.c src/uml_driver.c: virDomainObj
  doesn't need stdout and stderr fields anymore, patch from
  Guido Günther
daniel

  src/uml_driver.c src/util.c src/util.h src/xen_unified.c:
  unify hostname lookup using virGetHostname convenience function,
  patch by David Lutterkort
daniel

* src/node_device_devkit.c src/uml_driver.c src/virterror.c:
  convert old logging to the new API
daniel

* src/openvz_conf.c (openvzGetNodeCPUs): Add "%s" arg before _(...).
* src/uml_driver.c (umlDomainBlockPeek): Likewise.

* src/uml_driver.c (umlDomainShutdown): Initialize "info".
Patch and bug report from Ron Yorston <rmy@tigress.co.uk>.

  check errors, reported by Ben Guthro
daniel