[gnome-control-center] (15 commits) Non-fast-forward update to branch wip/feborges/new-users-panel

[Felipe Borges <felipeborges src gnome org>]

The branch 'wip/feborges/new-users-panel' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  4849db3... user-accounts: split join-dialog from account-dialog
  d3bb8d1... user-accounts: port Add User dialog to gtk+ composite widge
  51836dd... user-accounts: move Add User dialog buttons to ui file
  a0bab8b... user-accounts: move spinner to header in Add User dialog

Commits added to the branch:

  d18411d... build: Add GTest Makefile snippet (*)
  1428b52... datetime: Port tests to GTest (*)
  e48b3cc... printers: Port tests to GTest (*)
  af5f2f3... shell: Port tests to GTest (*)
  cf3da38... po: Add an unused source to the skip file (*)
  1ce4af4... shell: Add PrettyHostname to SSID helper (*)
  e669417... network: Fix hotspot silently failing with long hostname (*)
  44c16fc... network: Use the correct type for the "ssid" property (*)
  94de804... Updated Scottish Gaelic translation (*)
  89f6aa9... Updated Turkish translation (*)
  ac6c7b1... Updated Slovak translation (*)
  c8650d5... user-accounts: split join-dialog from account-dialog
  2758110... user-accounts: port Add User dialog to gtk+ composite widge
  8a09c04... user-accounts: move Add User dialog buttons to ui file
  bbe0338... user-accounts: move spinner to header in Add User dialog

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