[gnome-shell] (12 commits) ...padOsd: Apply specific CSS to Button/Leader SVG classes

[Florian Müllner <fmuellner src gnome org>]

Summary of changes:

  2a8eea1... padOsd: Fix .allocate() call (*)
  989ee65... padOsd: Disable ellipsizing in title label (*)
  963f962... padOsd: Fix double styling (*)
  c90e7ce... padOsd: Move button/ring/strip label creation to PadDiagram (*)
  dac05c7... padOsd: Make label coordinates API "private" (*)
  c511c46... padOsd: Move all coord/existence checks to _addLabel() (*)
  9891189... padOsd: Use map to store misc action label data (*)
  ece1329... padOsd: Drop needless call (*)
  f58cb34... padOsd: Only allocate child labels within allocate vfunc (*)
  63abfc1... padOsd: Cache label coordinates/arrangements (*)
  8a89de0... padOsd: Keep label coordinates in image coordinates (*)
  315c882... padOsd: Apply specific CSS to Button/Leader SVG classes (*)

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