Merge branch 'master' into harfbuzz-ng-external

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