[pango] (7 commits) Non-fast-forward update to branch pango2-windows

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'pango2-windows' 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:

  7f23bd1... pango-matrix.c: Improvise tolerance in acos() on Visual Stu
  299220b... README.win32: Update Windows build information
  3d13440... gtkjsonprinter.c: Don't check for <0x20 to output \uXXXX st

Commits added to the branch:

  9bac3ed... Revert "Disable known-broken tests" (*)
  23a3090... Clean up tests (*)
  5ad8a17... README.win32: Update Windows build information (*)
  2194a8c... Be careful with acos (*)
  d04afaf... Avoid gio in Pango headers (*)
  29cd53a... gtkjsonprinter.c: Don't check for <0x20 to output \uXXXX st
  addf600... pango-matrix.c: Correct call to CLAMP()

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