[Toolkit.Graphics] Fixed SwapChain2 instance creation to avoid silend…

… AccessViolationException on dispose (sharpdx#477).

[Build] Fix issue with nuget package for universal apps

[VisualStudio] Update VisualStudio extension to support SharpDX 2.6.0…

… nuget packages

[Build] Fix nuget packages

[Toolkit.Graphics] Fix issue sharpdx#364. Provides detailed exception…

… when a shader with a more recent profile is used on the current GraphicsDevice. Fix bug in GraphicsDevice constructor not using requested profiles on desktop.

[Release] Last fixes for 2.4.2. Remove unused documentation links.

[Build] Fix typo in release notes

[Build] Fix minor packaging issue that was preventing to include tkfx…

…c.exe and tkfont.exe

[Build] Update release notes for 2.3.1

[Build] Update build and generate self-extracting archive with 7zip