Updated NuGet packages for 3rd December 2013
New NuGet packages published from code version as of this date

Only known issue, Win GL project still referencing SharpDX Raw Input

NuGet releases now 3.1.1-Alpha
Added NuSpec for the Content Processor aligned to 3rd December release
Merge pull request #2148 from DDReaper/NuGet_update_package

Updated NuGet packages for 3rd December 2013