Added missing GraphicsDevice.SetVertexBuffers() method.
Added GraphicsDevice.SetVertexBuffers()
Added VertexBufferBinding.cs.
Fix build error on some platforms by re-using a value retrieved earlier when the GraphicsDevice was created.
Merge from upstream.
Added missing VertexBufferBinding.cs file.
Merge branch 'develop' of https://github.com/mono/MonoGame into setvertexbuffers

Conflicts:
	MonoGame.Framework/Graphics/GraphicsDevice.cs
	MonoGame.Framework/MonoGame.Framework.MacOS.csproj
	MonoGame.Framework/MonoGame.Framework.WindowsGL.csproj
	MonoGame.Framework/MonoGame.Framework.WindowsPhone.csproj
Merge branch 'setvertexbuffers' of https://github.com/KonajuGames/MonoGame into setvertexbuffers

Conflicts:
	MonoGame.Framework/Graphics/GraphicsDevice.cs
	MonoGame.Framework/Graphics/Texture.cs
	MonoGame.Framework/Graphics/Texture2D.cs
	MonoGame.Framework/Graphics/Texture3D.cs
	MonoGame.Framework/Graphics/TextureCube.cs
	MonoGame.Framework/Graphics/Vertices/VertexBuffer.cs
	MonoGame.Framework/GraphicsDeviceManager.cs
Merge branch 'develop' of https://github.com/mono/MonoGame into setvertexbuffers
Added Windows implementation of GetData to Texture3D
Fix GetData in Texture2D.
Switching from properties to fields in GetData in Texture3D
Added tests for Get/SetData members of Texture2D and Texture3D
Fix row pitch support in GetData in Texture2D and Texture3D
Some fixes to PSM rendering

Added TexCoord to BasicEffect shaders
Removed default BlendState for BasicEffect pass
Renamed reserved word Texture effect parameter in BasicEffect
Look for EXACT vertex buffer match (vertex and index array sizes must match request)
Removed #define DIRECTX from Texture3D.cs
Merge branch 'develop' of https://github.com/mono/MonoGame into setvertexbuffers
Remove the unbinding of OpenGL vertex buffers as it was causing crashes.  Unbinding was used incorrectly.
Fixed an incorrect bind in IndexBuffer.GetData.
Merge branch 'develop' of https://github.com/mono/MonoGame into setvertexbuffers
Fix duplicated _texture field.
Fixed Texture2D.GetData() when a rectangle is given.