Updated the AndroidGameWindow to take into account the DepthStencil
format. This is because some devices do not create a depth buffer
by default resulting in weird artifacts when rendering 3D models
Merge remote-tracking branch 'upstream/develop' into win8xact
Fixed an issue in AddSpecular where on certain android gpu's applying
the color.a to the specular wipes out the texture.

The fix is to apply it in two operations.
Fix strange song bug.
Added Obsolete attribute to GetState overload in Keyboard class.
Added description for my fix in code.
Removes trycount.
removes comment
Add a Try/Catch around creating a debug XAudio2 Device as it fails if the XAudio2 SDK is not installed. Fixes #1877
Merge remote-tracking branch 'upstream/develop' into win8xact
Reverted previous change to Common.fxh
Some more changes to make the graphics mode detection work better.
Various Updates to get the Content Pipleine working on Mac
Slight changes to the API to allow custom Loggers to be assigned,
This is useful for the Addins and any custom UI.
Changed the ContentTypeWriter to emit XNA style assembly
references for backward compatability (for now)
Updated the SpriteFont processor to attempt to write
compressed textures
Added Core.Graphics support for the FontHelper (thanks kjpou1)
Merge remote-tracking branch 'upstream/develop' into pipeline

Conflicts:
	MonoGame.Framework.Content.Pipeline/Builder/PipelineManager.cs
	MonoGame.Framework.Content.Pipeline/Graphics/FontHelper.cs
	MonoGame.Framework.Content.Pipeline/Graphics/GraphicsUtil.cs
	MonoGame.Framework.Content.Pipeline/MonoGame.Framework.Content.Pipeline.MacOS.csproj
	MonoGame.Framework.Content.Pipeline/Processors/TextureProcessor.cs
Fixed a few issues with the merge
Some changs to the Mac and Linux projects to fix up some of the dependencies
Fixed the FontDescriptionProcessor.cs
Bump ThirdParty/Libs to include the .dll.config for nvtt
Fixed some paths for the Mac dependecies
Reverted previous changes to ContentTypeWrtier.
Fixed an issue in the project file