3.3.16 (unstable): Gtk: * Add the Actionable interface. However, we cannot make it a base class of existing classes because that would break ABI. We can use it for new classes, or use it after a future ABI break. (José Alburquerque) Bug #637445. * Application: - Constructor: Receive argc and argv params by reference. - Initialize gtkmm early enough for successful construction. (José Alburquerque) Bug #637445. - Avoid the need to use Gtk::Main. - Make the create() methods static. (Murray Cumming) * Border: Add reference documentation. (Murray Cumming) Bug #669907 (Mark) * ColorButton: set_color(), set_alpha(), constructor: Deprecate these, as they are deprecated in the C API. (Murray Cumming) * EntryBuffer: Correct the EntryBuffer(name) constructor. Bug #670784 (Marcus Yass) * TextTag: Add RGBA versions of the properties. (Murray Cumming) * Window: set_background(Color): Deprcate this. (Murray Cumming) * Deprecate some properties that use Gdk::Color. (Murray Cumming) * Documentation: Add documentation for signals, based on the C documentation. (José Alburquerque) Bug #668918.