[gnome-shell] (6 commits) Non-fast-forward update to branch gbsneto/multi-user-button

[Florian Müllner <fmuellner src gnome org>]

The branch 'gbsneto/multi-user-button' 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:

  4b76b75... Revert "unlockDialog: Remove 'Login as another user' Label"
  bf11012... unlockDialog: Move switch user to the main dialog
  b490861... unlockDialog: Iconize the switch user button
  17a0e4a... unlockDialog: Hide switch users button when showing clock
  9e27403... unlockDialog: Hide cancel button

Commits added to the branch:

  9eff9ad... theme: Lock screen notification style tweaks (*)
  b78f09d... theme: fix submenu separator contrast (*)
  a9e5d0b... Revert "unlockDialog: Remove 'Login as another user' Label"
  c2cc006... unlockDialog: Move switch user to the main dialog
  9f44899... unlockDialog: Iconize the switch user button
  895b737... authPrompt: Hide cancel button on unlock screen

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