fix Xen hypervisor alignment problems on PPC64
* AUTHORS: added Christian
Daniel

        * configure.in: Removed --with-qemud-pid-file option since
          it is no longer used.

	* src/libvirt.c, src/xen_unified.c: If compiled with
	  --enable-debug=yes then we now trace libvirt calls on
	  stderr.

  virDomainParseXMLDiskDesc
Daniel

  docs/* po/*: prepared release of 0.3.0
Daniel

  new function virBufferEscapeString() to format a string while
  escaping its content for XML, and apply it to a couple of
  obvious places, should fix bug #206653
* po/*: updated strings, and added new bosnian localization.
Daniel

	* src/libvirt.c, src/qemu_driver.c: If the virNetworkLookup*
	  functions cannot find a network, then they now throw
	  VIR_ERR_NO_NETWORK error.

	* src/proxy_internal.c, src/proxy_internal.h,
	  src.xen_internal.c, src/xen_internal.h,
	  src/xen_unified.c, src/xen_unified.h,
	  src/xend_internal.c, src/xend_internal.h,
	  src/xm_internal.c, src/xm_internal.h,
	  src/xs_internal.c, src/xs_internal.h: The interface
	  between xen_unified.c and its underlying driver now uses
	  a custom structure (struct xenUnifiedDriver) instead
	  of reusing virDriver.
	* src/xen_unified.c: virDomainLookup* functions in Xen
	  now throw VIR_ERR_NO_DOMAIN if the domain does not exist.
	* src/xs_internal.c: Fix indentation.

Daniel

	* src/hash.c, src/internal.h: Remove virGetDomainByID function
	  as it is not used or exported.
	* src/proxy_internal.c, src/qemu_driver.c, src/remote_internal.c,
	  src/test.c, src/xend_internal.c, src/xs_internal.c: Fix
	  all callers to virGetDomain and virGetNetwork functions -
	  the callers do not need to set virterror since it is already
	  set inside the functions.

	* include/libvirt/virterror.h, src/virterror.c, src/libvirt.c:
	  Add VIR_ERR_NO_DOMAIN and VIR_ERR_NO_NETWORK errors, which
	  indicate that there is no domain/network from vir*Lookup* functions.
	* src/qemu_driver.c: Use VIR_ERR_NO_DOMAIN in lookup functions.
	* src/test.c: Use VIR_ERR_NO_DOMAIN in lookup functions.

* po/*: updated the localizations
* qemud/libvirtd.init.in: LSB'ization of the init script and
  couple of fixups
Daniel

	* src/xm_internal.c: configCache not getting refilled if the
	  connection was closed (affected the remote case mainly),
	  and error messages added to xenXMConfigCacheRefresh.

        * src/conf.c, src/test.c, src/xen_internal.c: Readd checking
          of errors from virBuffer functions.
        * src/sexpr.c: Add comment about use of _GNU_SOURCE.
        * src/virsh.c: Remove use of _GNU_SOURCE / isblank.
        * src/xml.c, tests/Makefile.am: Minor cleanup.

  of domains references in some commands.
Daniel

  stylesheet
* docs/*: regenerated
* src/bridge.c src/bridge.h src/buf.c src/iptables.c src/libvirt.c
  src/qemu_driver.c src/qemu_driver.h src/uuid.c src/uuid.h: cleanup,
  addd comments, made functions static and fixe a few bugs
Daniel

	* docs/site.xsl, docs/libvir.html, docs/hvsupport.html:
	  Document which libvirt versions supported various
	  hypervisor calls.