0.5.1:

* Added cluttermm-gtk, wrapping clutter-gtk.
  This provides the Clutter::Gtk::Embed widget.
  (Siavash Safi)
* Added cluttermm-cairo, wrapping clutter-cairo.
  This provides Clutter::Cairo::CairoTexture.
  (Jonathon Jongsma)
* Changed the pkg-config files to use 0.6 in their name, so we can target 
  specific clutter API versions. For instance, cluttermm-0.6, cluttermm-gtk-0.6, 
  and cluttermm-cairo-0.6.
  (Jonathon Jongsma)
* Actor: add default value of 'true' to Actor::set_reactive().
  (Jonathon Jongsma)

0.5.0:

Initial version.
