Log Message:
Update ruby-gnome2 to 0.19.1.

This release is a bug fix release of 0.19.0.

=== Changes

==== Ruby/GTK2

  * use RUBYARCHDIR
    [OBATA Akio]
  * #2814953: install missing headers
    [Mamoru Tasaka]

==== Ruby/GLib2

  * Bug fixes:
    * avoid object allocation while GC
      [OBATA Akio, Kouhei Sutou]
  * use RUBYARCHDIR
    [OBATA Akio]
  * mkmf-gnome2.rb add "-I$(vendorarchdir)" to $CPPFLAGS.
    [OBATA Akio, Kouhei Sutou]

==== Ruby/ATK

  * use RUBYARCHDIR
    [OBATA Akio]

==== Ruby/Pango

  * use RUBYARCHDIR
    [OBATA Akio]
  * use gem version rcairo as fallback
    [OBATA Akio]

==== Ruby/Libart

  * use RUBYARCHDIR
    [OBATA Akio]

==== Ruby/GdkPixbuf

  * use gem version rcairo as fallback
    [OBATA Akio]

==== Ruby/GnomePrint

  * install rblibgnomeprintversion.h
    [OBATA Akio, Kouhei Sutou]

==== Ruby/GtkMozEmbeded

  * fix header generation error caused by missing file
    [OBATA Akio]

==== Ruby/VTE

  * support VTE 0.20
    [Kouhei Sutou]

==== Ruby/PanelApplet

  * #2815036: re-support Ruby 1.8.6.
    [Mamoru Tasaka, Kouhei Sutou]

==== Ruby/Libglade2

  * Debian#519786: fix GC related SEGV when a widget in
    glade is removed by hand.
    [Arnaud Cornet, Kouhei Sutou]

=== Thanks

  * OBATA Akio
  * Mamoru Tasaka
  * Arnaud Cornet