WinJS App creation
Loading babylon demos scenes links dynamically instead of hard coding links.
Merge remote-tracking branch 'remotes/nicolas-obre/WinJSApplication' into ourOwnBabylonJSWinJSApp
Added MSBuild target to automatically add personal demo files into application package.

Your files must be placed under "addToPackage" folder
WinJS application now using listView to show available scenes.
Listing all babylon demos scene in a group, and user customs scenes in an other group.
Adding a back button to go back to scenes listing page.
Fixing an issue with Internet Explorer while rendering a RenderTargetTexture outside the engine renderLoop.
Merge pull request #177 from nicolas-obre/RenderTargetTextureFix

Fixing an issue with Internet Explorer while rendering a RenderTargetTexture outside the engine renderLoop.
New event for materials: ```onCompiled``` and ```onError```
Adding a sandbox view to quickly test your own .babylon files
Starting renderLoop only on scene loaded, stopping on scene unload.
Testing if an activeCamera is set before trying to attach control since user can specify a default camera on his sceneLoadedCallback.
New VertexData: TorusKnot
Fixing torusKnot
Creating a method to create default camera and light if not found in loaded scene.
Sandbox can now load a scene without camera or light, they will be created if not found in babylon file.
Rename Render[*] files to PostProcessRender[*].
Updating babylonJS.xml
Replacing the eval function by another method in Babylon/PostProcess/RenderPipeline/babylon.postProcessRenderEffect.js
Merge branch 'master' of github.com:BabylonJS/Babylon.js into renderPipeline

Conflicts:
	Babylon/PostProcess/RenderPipeline/babylon.postProcessRenderEffect.js
	Babylon/PostProcess/RenderPipeline/babylon.postProcessRenderPass.js
	Babylon/PostProcess/RenderPipeline/babylon.postProcessRenderPipeline.js
	Babylon/PostProcess/RenderPipeline/babylon.postProcessRenderPipelineManager.js
Fixing TorusKnot normals
Merge pull request #179 from michael-korbas/renderPipeline

PostProcessRenderPipeline
Fixing collisions cache bug
New option for mesh: ```mesh.showBoundingBox``` to display mesh's bounding box. You can configure back and front color using ```scene.getBoundingBoxRenderer()```. This function returns a ```BABYLON.BoundingBoxRenderer``` where you can define ```backColor```, ```frontColor``` and ```showBackLines```
Updated babylonJS.xml