checkpoint don't fall
Merge branch 'Atlas_3'

Conflicts:
	Gemini/Assets/AtlasScene/Atlas_LearnToPush.unity
	Gemini/Assets/Prefab/FallenStarToConstellation.prefab
	Gemini/Assets/Prefab/UI/HintSprite.prefab
	Gemini/Assets/Script/GameStart.cs
	Gemini/Assets/Script/Nick/audioManager.cs
	Gemini/Library/CurrentLayout.dwlt
	Gemini/Library/CurrentMaximizeLayout.dwlt
	Gemini/Library/InspectorExpandedItems.asset
	Gemini/Library/assetDatabase3
	Gemini/Library/expandedItems
	Gemini/Library/guidmapper