Overview of changes between 1.26.0 and 1.26.1
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- Finally fix GPOS positioning and kerning with non-identity cairo matrices
- [HB] Fix lookup_flag ignoring
- Fix leak with non-mmapped fonts
- Allow using uninstalled glib
- Bugs fixed:
    Bug 341481 - pangocairo kerning problem with nonidentity scaling
    Bug 587768 - [patch] Don't build pango-view twice
    Bug 594101 - [Indic] character class data updates to support unicode 5.1
    Bug 596837 - Typo in pango_cairo_show_layout documentation