* configure.in: add new --with-udev, disabled by default, and requiring
  libudev > 145
* src/node_device/node_device_udev.c src/node_device/node_device_udev.h:
  the new node device backend
* src/node_device/node_device_linux_sysfs.c: moved node_device_hal_linux.c
  to a better file name
* src/conf/node_device_conf.c src/conf/node_device_conf.h: add a couple
  of fields in node device definitions, and an API to look them up,
  remove a couple of unused fields from previous patch.
* src/node_device/node_device_driver.c src/node_device/node_device_driver.h:
  plug the new driver
* po/POTFILES.in src/Makefile.am src/libvirt_private.syms: add the new
  files and symbols
* src/util/util.h src/util/util.c: add a new convenience macro
  virBuildPath and virBuildPathInternal() function

* src/libvirt.c src/lxc/lxc_conf.c src/lxc/lxc_container.c
  src/lxc/lxc_controller.c src/node_device/node_device_hal.c
  src/openvz/openvz_conf.c src/qemu/qemu_driver.c
  src/qemu/qemu_monitor_text.c src/remote/remote_driver.c
  src/storage/storage_backend_disk.c src/storage/storage_driver.c
  src/util/logging.c src/xen/sexpr.c src/xen/xend_internal.c
  src/xen/xm_internal.c: Steve Grubb <sgrubb@redhat.com> sent a code
  review and those are the fixes correcting the problems

The LXC driver was mistakenly returning -1 for lxcStartup()
in scenarios that are not an error. This caused the libvirtd
to quit for unprivileged users. This fixes the return code
of LXC driver, and also adds a "name" field to the virStateDriver
struct and logging to make it easier to find these problems
in the future

* src/driver.h: Add a 'name' field to state driver to allow
  easy identification during failures
* src/libvirt.c: Log name of failed driver for virStateInit
  failures
* src/lxc/lxc_driver.c: Don't return a failure code for
  lxcStartup() if LXC is not available on this host, simply
  disable the driver.
* src/network/bridge_driver.c, src/node_device/node_device_devkit.c,
  src/node_device/node_device_hal.c, src/opennebula/one_driver.c,
  src/qemu/qemu_driver.c, src/remote/remote_driver.c,
  src/secret/secret_driver.c, src/storage/storage_driver.c,
  src/uml/uml_driver.c, src/xen/xen_driver.c: Fill in name
  field in virStateDriver struct

These will be used by the test driver, so move them to a shareable space.

Certain error paths won't unlock the node device object.

Will be used by test driver node device implementation.
Signed-off-by: NCole Robinson <crobinso@redhat.com>

Signed-off-by: NCole Robinson <crobinso@redhat.com>

* daemon/qemud.c, src/Makefile.am: Update for changed paths
* src/node_device*.{h,c}: Move to src/node_device/
* src/storage/storage_backend.c: Remove bogus import of node_device.c