with cleanups of bugs found from Coverity reports:

* dbus/dbus-sysdeps-util.c (_dbus_write_pid_file):
  close the file on error to avoid a leak

* bus/expirelist.c (bus_expire_list_test):
  Check for NULL on dbus_new0

* bus/activation.c (update_directory):
  remove dead code

* bus/config-parser.c (merge_service_context_hash, start_selinux_child):
  Fix some leaks

* bus/bus.c (process_config_every_time):
  Fixed a leak

* bus/desktop-file.c (parse_key_value):
  Fixed leak

* bus/selinux.c (bus_selinux_id_table_insert):
  Fixed leak