[gnome-shell] (18 commits) Non-fast-forward update to branch gbsneto/icon-grid-dnd

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'gbsneto/icon-grid-dnd' 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:

  fe7bff7... allView: Scale in when moving icons from folders
  f1d26c7... folderIcon: Add visual drag-over feedback
  1c9e24c... baseAppView: Add only non-added icons, in order
  c264f1c... baseAppView: Only add and remove when necessary
  b82a01f... iconGrid: Implicitly animate icon positions
  b605e20... baseAppView: Remove BaseAppView.addItem()
  7b979ab... allView: Add visual feedback for dragging outside folders

Commits added to the branch:

  fd131f0... allView: Scale in when moving icons from folders
  cf43a8a... folderIcon: Add visual drag-over feedback
  47265ba... baseAppView: Add only non-added icons, in order
  d680137... baseAppView: Only add and remove when necessary
  ccfeda8... iconGrid: Implicitly animate icon positions
  89e6cf2... baseAppView: Remove BaseAppView.addItem()
  7e905ee... allView: Only create folder icon if it doesn't exist
  362e8c9... allView: Don't sort icons
  399c6ab... allView: Redisplay on folder changes
  8c2c02e... gschema: Add the 'icon-grid-layout' key
  a21367e... allView: Add support for custom positioning
  ddd59cc... paginatedIconGrid: Store extra space data
  99b949e... folderView: Move DnD functions to BaseAppView
  e99d63d... iconGrid: Save a few more values
  0dc207d... iconGrid: Add item nudge API
  b80ae74... appDisplay: Add moveItem()
  7581d7b... allView, folderView: Implement moving icons
  fae33d1... allView, folderView: Save order after moving icon