New ```Texture.CreateFromBase64String``` function
New procedural textures
Merge branch 'master' of https://github.com/BabylonJS/Babylon.js

Conflicts:
	Babylon/Materials/textures/Procedurals/babylon.standardProceduralTexture.js
	Babylon/Materials/textures/Procedurals/babylon.standardProceduralTexture.ts
	Babylon/Math/babylon.math.js
	Babylon/Math/babylon.math.ts
	Babylon/Shaders/grass.fragment.fx
	Babylon/Shaders/rock.fragment.fx
	babylon.2.0-alpha.debug.js
	babylon.2.0-alpha.js
	babylon.2.0.d.ts