[Build] Removed DirectX11.1 Desktop and WinRT configurations.
[Samples] Fixed samples references to use DX11.2 for WinRT.
[DXGI] Fixed mapping for DX11.1 ISurfaceImageSourceNative::BeginDraw::surface parameter (aparently was renamed in DX11.2).
[Toolkit.Samples] Fixed StreamOutParticles sample after changes in pull request #200.
[Build] Renamed Win8DX11_2(Debug|Release) configurations to Win8(Debug|Release).
[Build] Fixed build script according to renamed configurations, removed missing configuration from singned build.
[Build] Fixed broken configuration for WinRT (as result of renaming Win8DX11_2 to Win8).
[Direct2D1] Included mappings for newly added functionality in DX11.2 (issue #203).
Merge branch 'master_integration' into remove-dx11-1