Circle TD - Demo update v2.160723

New demo build v2.160723

• Added UI sounds.
• Reorganized Build Menu UI.
• Changed Icons for Ground and Air Target available.
• Added descriptions to towers.
• Added new type of towers and attack - Splash Towers.
• Added Race feature - now you need to select and buy a first race, which you play at start. Now there is available only one race of course).
• Some balance hacks.
• Minor fixes and updated.