[pango/1.28] (24 commits) ...Release 1.28.1

[Behdad Esfahbod <behdad src gnome org>]

Summary of changes:

  91d8773... Remove the .vcproj files before rewriting them (*)
  1a36b77... Bug 582698 - Support CSS-style margin specification (*)
  52ab3d5... [HB] Fix debug build (*)
  5383831... [HB] Fix warnings (*)
  0d0cbf4... [HB] Round instead of trunc (*)
  1c90dc6... GNOME Bug 613015 - [HB] Does not sanitize Device tables ref (*)
  fc23518... [HB] Remove ASSERT_SIZE_DATA (*)
  851f873... [HB] Add couple consts to operators (*)
  5453f4b... [HB] Fix Class operator return type (*)
  b11755c... [HB] Cosmetic (*)
  39620ce... [HB] Simplify Tag struct (*)
  9091e0f... [HB] Use a function template instead of struct template for (*)
  4eca6bc... [HB] Remove stale TODO item (*)
  140cfe4... [HB] Improve comments (*)
  fd31122... [HB] Minor (*)
  34e0503... [cairo] Refactor common code in create_metrics_for_context( (*)
  1caf294... [cairo] Scale font metrics to user space (*)
  4959326... Fix glyph class building.  Oops! (*)
  8be1be8... Cypriot is RTL (*)
  a30783a... Fix a test failure (*)
  14763c5... Bug 621612 - VPATH build fix
  cf1022c... Backport this commit from harfbuzz-ng repo:
  7dc0bb2... Merge branch 'master' into 1.28
  9daa110... Release 1.28.1

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