Ported to GTK+ 3.10 to fix the deprecated APIs.

GtkWindow       -> GtkApplicationWindow and GtkApplication
GtkTable        -> GtkGrid
GtkVBox         -> GtkBox
GtkToggleButton -> GAction
Changed the static GtkBuilder file to the resource file.
Changed custom GtkSpinButton to GtkButton
Showed custom table only by default.
Set G_APPLICATION_NON_UNIQUE flag to be able to run by ibus and standalone.
Changed deprecated GtkVBox to GtkBox in builder files.
Updated translations.
Released 1.0.99.20140423