added sign prefab, signs topple down when dragon hits them
Merge remote-tracking branch 'origin/master'

Conflicts:
	Assembly-CSharp.pidb
	Assets/-tk2d.asset
	Assets/artwork/collections/GameCollection Data/GameCollection.prefab
	Assets/artwork/collections/GameCollection Data/atlas0.png
	Assets/artwork/collections/GameCollection.prefab
	Assets/scenes/Game.unity
	IndieSpeedRun2013.userprefs
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