Add an override for Gtk3::show_about_dialog
Use the correct version test for skipping a set of tests
Fix some test failures due to older dependencies
Add overrides for Gtk3::ActionGroup

Namely, make list_actions() flatten its output list, and provide
reimplementations of add_actions(), add_toggle_actions() and
add_radio_actions().
Release v0.007
Add overrides for some Gtk3::RadioMenuItem constructors

Original patch Dave M.
Add overrides for Gtk3::Gdk::Event
Enable more Gtk3::Gdk::Event tests

Using the recently extended field writing support in G:O:I.
Add overrides for Gtk3::CssProvider
Add overrides for Gtk3::UIManager
Avoid warnings from the Gtk3::UIManager tests
Always convert GdkRectangle objects to and from Cairo::RectangleInt

This uses the boxed synonyms machinery recently added to Glib and
Glib::Object::Introspection to make GdkRectangle a synonym for
CairoRectangleInt.
Release v0.008
Add overrides for Gtk3::Container
Test that no double-frees occur for custom Gtk3::Widget subclasses
Add Gtk3::EVENT_PROPAGATE and Gtk3::EVENT_STOP
Add overrides for Gtk3::Editable

Specifically, its insert_text method and signal.
Add overrides for Gtk3::Dialog

Including conversion of predefined response IDs to nick names, so this is an
API change.
Add overrides for Gtk3::FileChooserDialog
Rename a variable for consistency