Merge branch 'master' of https://github.com/BabylonJS/Babylon.js

dist/preview release/what's new.md

@@ -10,6 +10,7 @@
  - Added support for Exponential Shadow maps to replace Variance Shadow maps. [more info here](http://www.babylonjs-playground.com/debug.html#1CXNXC#3) - [Demo](http://www.babylonjs.com/Demos/AdvancedShadows/) - [Demo](http://www.babylonjs-playground.com/#1CXNXC#4) ([deltakosh](https://github.com/deltakosh))
  - Support for [Vertex Array Objects](https://www.opengl.org/registry/specs/ARB/vertex_array_object.txt) ([deltakosh](https://github.com/deltakosh))
  - Support for [Uniform Buffer Objects](https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.16) ([CraigFeldspar](https://github.com/CraigFeldspar))
+  - New [SSAO](https://en.wikipedia.org/wiki/Screen_space_ambient_occlusion) technique, using [MultiRenderTargets](https://en.wikipedia.org/wiki/Multiple_Render_Targets) ([CraigFeldspar](https://github.com/CraigFeldspar))
  - Support for multisample render targets. [Demo](http://www.babylonjs-playground.com/#12MKMN) ([deltakosh](https://github.com/deltakosh))
  - New Unity 5 Editor Toolkit. Complete pipeline integration [Doc](TODO) - ([MackeyK24](https://github.com/MackeyK24))
  - New DebugLayer. [Doc](TODO) - ([temechon](https://github.com/temechon))