Matthew Waters:
pango: add some missing AttrInt constructors.
Paolo Borelli:
macros: allow to specify #[default] for glib::flags
Sebastian Dröge:
glib: Add `Quark::from_static_str()`
glib: Use `Self` instead of `Quark` in a few places
glib: Drop the main context future return value sender on finalize
glib: Fix memory leak in `subclass::shared` tests
glib: Use `glib::GString` for collate keys
glib: Avoid heap allocation and copy of input strings for collation
glib: Don't misuse `slice::get_unchecked()`
Update versions to 0.19.3
Ville Hakulinen:
gio: correctly free argument list items
tests: skip failing test on windows
