Remove commented out code
Don't try to transfer arraybuffers on browsers that don't support it.
Changes based on review
Merge pull request #1510 from AnalyticalGraphicsInc/ie11

Improve compatibility with IE11
Tweak description.
Merge pull request #1415 from AnalyticalGraphicsInc/gallery

Gallery file upgrades
fix doc
Remove uneeded assignment.
Add properties to interfaces
Merge pull request #1511 from AnalyticalGraphicsInc/getSetProperties

Replace get/set functions with properties
fix doc
Merge branch 'master' into getSetImageTerrainProperties

Conflicts:
	CHANGES.md
	Source/Scene/ArcGisMapServerImageryProvider.js
	Source/Scene/BingMapsImageryProvider.js
	Source/Scene/CentralBody.js
	Source/Scene/CentralBodySurface.js
	Source/Scene/GoogleEarthImageryProvider.js
	Source/Scene/GridImageryProvider.js
	Source/Scene/ImageryLayer.js
	Source/Scene/SingleTileImageryProvider.js
	Source/Scene/TileCoordinatesImageryProvider.js
	Source/Scene/WebMapServiceImageryProvider.js
	Specs/Scene/ArcGisMapServerImageryProviderSpec.js
	Specs/Scene/BingMapsImageryProviderSpec.js
	Specs/Scene/GoogleEarthImageryProviderSpec.js
	Specs/Scene/GridImageryProviderSpec.js
	Specs/Scene/OpenStreetMapImageryProviderSpec.js
	Specs/Scene/SingleTileImageryProviderSpec.js
	Specs/Scene/TileCoordinatesImageryProviderSpec.js
	Specs/Scene/TileMapServiceImageryProviderSpec.js
	Specs/Scene/WebMapServiceImageryProviderSpec.js
Merged master to gltf
Fixes after merge
Add missing pragma.
using precached
Merge pull request #1482 from AnalyticalGraphicsInc/gltf

glTF models
Changes after review.
Update CHANGES.md
Merge branch 'master' into faceForward