IBus-LibThai 0.1.5 Released

• Restructure keycode maps to ease modifications.
• Add Manoonchai keyboard layout.
• Switch configuration system from the broken IBusConfig to GSettings.
• Modify Pattachote layout for extra Thai characters.
  (Thanks Kridsada Thanabulpong (@sirn) for the informative inputs.)

IBus-LibThai 0.1.4 Released

• Fix incorrect keys in Pattachote layout.
  (Thanks Kridsada Thanabulpong for the pull request.)
• Drop unused code.