Use external harfbuzz shared library from harfbuzz-ng
Update to new HarfBuzz query API
[HB] Update to HarfBuzz struct renames
Simplify GPOS application for ltr/rtl
Use hb-ft.h
Start porting basic-fc to harfbuzz-ng
Adjust to hb_buffer_get_len() rename
Fix FT_Face finalizer call
Use hb_ot_layout_position_finish()
[OT] Adapt to HB API change
[HB module] Release font
[HB module] Hook-up TT kerning
Fix hb font scale
[OT] Adjust to HB API change
Fix glyph class building.  Oops!
Adjust to hb-ng scale cleanup
Update to hb inversion of the mask
Merge branch 'master' into harfbuzz-ng-external

Conflicts:
	pango/Makefile.am
	pango/pango-ot-buffer.c
	pango/pango-ot-info.c

Removed:
	pango/opentype/Makefile.am
	pango/opentype/hb-blob.c
	pango/opentype/hb-open-file-private.hh
	pango/opentype/hb-open-type-private.hh
	pango/opentype/hb-ot-layout-common-private.hh
	pango/opentype/hb-ot-layout-gdef-private.hh
	pango/opentype/hb-ot-layout-gpos-private.hh
	pango/opentype/hb-ot-layout-gsub-private.hh
	pango/opentype/hb-ot-layout-gsubgpos-private.hh
	pango/opentype/hb-ot-layout.cc
	pango/opentype/hb-ot-layout.h
	pango/opentype/hb-private.h
Fix docs build on Ubuntu

I'm guessing that Ubuntu has broken libtool by not automatically adding
dependent libraries from the .la file...
Doc template changes