[gnome-control-center] (21 commits) ...Release 2.31.4

[Thomas Wood <thos src gnome org>]

Summary of changes:

  e35b73a... Add initial implementation of date/time panel (*)
  29e221e... datetime: add a GtkBuilder file to define the user interfac (*)
  3c863ae... datetime: update .desktop file name and comment fields (*)
  15560a9... datetime: ensure the map is shown (*)
  72a7d5e... datetime: Simplify the UI (*)
  2208f28... datetime: Add names to the widgets (*)
  3c39f56... datetime: Set the correct date and time in the UI (*)
  12083b8... datetime: set spin buttons to the current time at startup (*)
  1d60aff... datetime: use the SettingsDaemon dbus service to set the sy (*)
  26ae013... datetime: add detection of location from map clicks (*)
  402d7dc... datetime: replace underscores with spaces for location disp (*)
  8db6536... datetime: update the time labels when the location is chang (*)
  8174f22... datetime: add a function to retrieve current timezone from  (*)
  5ed92c6... datetime: add a function to set the current location on CcT (*)
  89e778c... datetime: get the current system timezone and show it on th (*)
  12e1151... datetime: propagate dbus errors
  2e2b70f... datetime: remove default value for the location label
  bb229f1... datetime: define capplet name for GNOMECC_CAPPLETS_CFLAGS
  8c6eba7... datetime: fix issues with distcheck
  0cbbf01... Merge branch 'wip/datetime-panel'
  a858829... Release 2.31.4

(*) This commit already existed in another branch; no separate mail sent