Hot fix environments

Ancient Ruins, Essential Terrain Pack & Winter Assets

AR and ETP packs are now updated to Unity 5.3.1 in order to fix the recent issues caused by shaders not working properly. Also Winter Assets has been updated to include some missing scripts in new version.


Issue: Issues with custom shaders on Unity 5.3.1


Winter Assets 1.5.1:

- Image Effects updated


Ancient Ruins 1.2.1:

- Shaders fixed

- Old water shader removed


Essential Terrain Pack 1.01:

- Shaders fixed

- Scenes Lighting Data file created (not auto mode)