Released 1.5.0

Added ibus menu customization.
Added us layout table for Kana.
Added keyboard layout customization.
Enabled IBusProperty.symbol with ibus 1.5 .
Add a .desktop file for ibus-setup-anthy
Updated configure.ac to use ibus pygobject3.
Converted pygtk2 to gir gtk3.

configure.ac

@@ -21,10 +21,10 @@
 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 dnl - if not 1, append datestamp to the version number.
-m4_define([ibus_released], [0])
+m4_define([ibus_released], [1])
 m4_define([ibus_major_version], [1])
-m4_define([ibus_minor_version], [4])
-m4_define([ibus_micro_version], [99])
+m4_define([ibus_minor_version], [5])
+m4_define([ibus_micro_version], [0])
 m4_define([ibus_abi_current], [5])
 m4_define([ibus_abi_revision],
           [m4_eval(100 * ibus_minor_version + ibus_micro_version)])