Update ruby-gnome2 to 2.2.0.

== Ruby-GNOME2 2.2.0: 2014-03-09

It is a release that Ruby/GIO2 is migrated to
Ruby/GObjectIntrospection based bindings.

Some API changes in Ruby/GIO2 are expected but unexpected API changes
may exist. If you find API change, please report it. If the API change
provides non Rubyish API, it will be a bug.

=== Changes

==== Ruby/GLib2

  * Improvements
    * Stopped to use deprecated API internally in G_REPLACE_SET_PROPERTY.
    * Added RG_REPLACE_SET_PROPERTY.
    * Reduced locking on object creation.
    * Exported rbg_inspect().
    * Created code level error.
    * Raised code level error instead of domain level error.

  * Fixes
    * Fixed a bug that wrong error code may be used.

==== Ruby/GTK2

  * Improvements
    * Suppressed warnings on startup.

  * Fixes
    * [windows] Suppressed IME related warnings.
      [Reported by OBATA Akio]
    * [GitHub#222] Fixed a bug that Gdk::EventAny related methods
      aren't used by other Gdk::Event classes.
      [Reported by mtasaka]

==== Ruby/GDK3

  * Improvements
    * Added Gdk::Display#device_manager.
    * Added Gdk::Window#display.
    * Suppressed warnings on startup.
    * Added Gdk::Event::PROPAGATE.
    * Added Gdk::Event::STOP.

  * Fixes
    * [windows] Suppressed IME related warnings.
    * Fixed a bug that Gdk::DeviceManager is wrong object.
    * [GitHub#222] Fixed a bug that Gdk::EventAny related methods
      aren't used by other Gdk::Event classes.
      [Reported by mtasaka]

==== Ruby/GTK3

  * Improvements
    * Added Gtk::MenuButton.
    * [GitHub#219] Added Gtk::LevelBar. [Patch by cosmo0920]
    * Added Gtk::IconView.
    * [GitHub#206] Added Gtk::HeaderBar. [Reported by dark-yux]
    * [GitHub#223] Added Gtk::Stack. [Patch by cosmo0920]
    * Suppressed warnings on startup.
    * Added Gtk::Revealer.
    * Updated sample scripts.
    * [GitHub#227] Added Gtk::SearchBar. [patch by cosmo0920]

==== Ruby/GIO2

  * Improvements
    * Migrated to Ruby/GObjectIntrospection based bindings.
    * [SF.net#187] Supported Gio::ContentType.guess.
      [Reported by neversleep1911]
    * Added Gio::Resources.lookup_data.
    * Added Gio::Resources.open_stream.
    * Added Gio::Resources.enumerate_children.
    * Added Gio::Resources.get_info.
    * Added Gio::Resources.register.
    * Added Gio::Resources.unregister.

  * Changes
    * Removed Gio::Socket#create_source. Use
      Gio::InputStream#create_source or
      Gio::OutputStream#create_source instead.
    * Removed Gio::InetAddress.new_from_string. Use
      Gio::InetAddress.new instead.
    * Removed Gio::InetAddress.new_any. Use
      Gio::InetAddress.any instead.
    * Removed Gio::InetAddress.new_l. Use
      Gio::InetAddress.any instead.

  * Fixes
    * [SF.net#186] Fixed a bug that Gio::ContentType module functions
      raises "no implicit conversion" error.
      [Reported by neversleep1911]

==== Ruby/Pango

  * Improvements
    * [ruby-gnome2-devel-en] Re-supported build on CentOS 5.
      [Reported by Grant Schoep]

==== Ruby/Poppler

  * Improvements
    * Suppressed a warning on startup.

==== Ruby/GtkSourceView2

  * Improvements
    * [GitHub#226] Suppressed warnings.
      [Patch by cosmo0920]

  * Fixes
    * [GitHub#215] Fixed a return value for
      GtkSource#get_mark_category_background.
      [Reported by mtasaka]

==== Ruby/GObjectIntrospection

  * Improvements
    * [GitHub#216] Suppressed warnings on armv7hl.
      [Reported by mtasaka]
    * Supported freeing interface.
    * Supported freeing struct.
    * Supported String as void * value for value.
    * Supported freeing array of int8.
    * Supported freeing array of uint8.
    * Supported defining errors.
    * Improved guessing target method for overloaded method.
    * Supported array length.
    * Supported inout array.
    * Converted GBytes to String instead of wrapped GBytes.
    * Supported all exception types rather than GLib::Error.

  * Changes
    * Changed returned value of inout array to an array from an array
      and array length.

  * Fixes
    * [GitHub#216] Fixed test failures on i686 environment.
      [Reported by mtasaka]

==== Ruby/ClutterGTK

  * Improvements
    * Added duplicated Clutter.init check.

=== Thanks

  * OBATA Akio
  * mtasaka
  * cosmo0920
  * Grant Schoep
  * dark-yux
  * neversleep1911

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