Update gtk2hs (Haskell binding to GTK+) information!

[Andy Stewart <lazycat manatee gmail com>]

Dear GTK+ administrator,

I'm a developer of gtk2hs (Haskell binding to GTK+), i have update all
GTK+2.20 APIs in gtk2hs, any administrator help me update page
http://www.gtk.org/language-bindings.html ?

You can check those APIs at gtk2hs repository : http://code.haskell.org/gtk2hs/gtk/Graphics/UI/Gtk/

Thank you very much!

  -- Andy