[gnome-nibbles] (17 commits) Non-fast-forward update to branch arnaudb/kill-preferences-dialog

[Arnaud B. <arnaudb src gnome org>]

The branch 'arnaudb/kill-preferences-dialog' 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:

  bcc819d... Add Speed panel.
  1b45b04... Clear Preferences dialog code.
  e0951e1... Rework Preferences dialog.
  df19b20... Clean ControlsGrid.
  dfb0567... Add translators comments.
  a90e310... Fix some warnings.
  478205b... Do not start game with uncontrollable worm.
  faf925e... Remove Preferences entry.
  c624674... Allow to set a key used by absent worm.
  f0717b6... Do not allow multiple worms to use same control.
  4e02be7... Warn when a key is assigned to multiple controls.
  4c9228b... Fix typos.
  c811f14... Remove CSS warnings.
  9398586... Remove unused signal.

Commits added to the branch:

  ee0c68c... Add Speed panel.
  c0d9a12... Clear Preferences dialog code.
  fd2b8d5... Rework Preferences dialog.
  90f6bf7... Clean ControlsGrid.
  fbd6c70... Add translators comments.
  f8749c3... Fix some warnings.
  76295c0... Do not start game with uncontrollable worm.
  5095821... Remove Preferences entry.
  7a11977... Allow to set a key used by absent worm.
  48a94fb... Do not allow multiple worms to use same control.
  bf246fd... Warn when a key is assigned to multiple controls.
  ef54a8d... Fix typos.
  f504f28... Remove CSS warnings.
  c7b88f1... Remove unused signal.
  843f577... Avoid a textual repetition.
  52411a3... Move UI files in ui folder.
  092c883... Fix Preferences dialog background color.