configure.ac, wmshutdown.c: Add --with-consolekit configure option to enable
users wanting to use ConsoleKit instead of logind.
wmshutdown.c: Use dialog to communicate dbus errors.
wmshutdown.c: Replace deprecated gtk_dialog_get_action_area with
gtk_dialog_add_buttons.
Release version 1.2.
Import upstream release version 1.2.
debian/control: Update Homepage.
debian/control: Bump Standards-Version to 3.9.6, no changes required.
debian/control: Add systemd [linux-any], consolekit [!linux], and dbus to
Depends.
debian/control: Add dh-autoreconf to Build-Depends.
debian/copyright: Update Source.
debian/NEWS.debian: Remove out-of-date file.
debian/rules: Use dh-autoreconf.
debian/rules: Add get-orig-source target.
debian/watch: Update with new location.
debian/changelog: Draft for version 1.2-1.
debian/rules: Add override_dh_auto_configure target to use ConsoleKit in !linux.