Support new PolicyKit 1.0 API

* configure.in: Check for pkcheck which indicates new policykit
* qemud/Makefile.am: Install different versions of policy
* qemud/libvirtd.policy: Rename to libvirtd.policy-0
* qemud/libvirtd.policy-1: new style policy
* qemud/qemud.c, qemud/qemud.h, qemud/remote.c: Support new
  policykit API via external pkcheck helper
* src/remote_internal.c: Don't prompt for polkit auth with new
  policykit API
* libvirt.spec.in: deal with new policy install locations & deps

libvirt.spec.in

@@ -95,8 +95,12 @@ Requires: iptables
 # needed for device enumeration
 Requires: hal
 %if %{with_polkit}
+%if 0%{?fedora} >= 12
+Requires: polkit >= 0.93
+%else
 Requires: PolicyKit >= 0.6
 %endif
+%endif
 %if %{with_storage_fs}
 # For mount/umount in FS driver
 BuildRequires: util-linux
@@ -150,8 +154,13 @@ BuildRequires: bridge-utils
 BuildRequires: cyrus-sasl-devel
 %endif
 %if %{with_polkit}
+%if 0%{?fedora} >= 12
+# Only need the binary, not -devel
+BuildRequires: polkit >= 0.93
+%else
 BuildRequires: PolicyKit-devel >= 0.6
 %endif
+%endif
 %if %{with_storage_fs}
 # For mount/umount in FS driver
 BuildRequires: util-linux
@@ -525,8 +534,12 @@ fi
 %endif
 
 %if %{with_polkit}
+%if 0%{?fedora} >= 12
+%{_datadir}/polkit-1/actions/org.libvirt.unix.policy
+%else
 %{_datadir}/PolicyKit/policy/org.libvirt.unix.policy
 %endif
+%endif
 
 %dir %attr(0700, root, root) %{_localstatedir}/log/libvirt/
 %if %{with_qemu}