feature : prepare NullRenderDevice.

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>
feature : prepare D3D11 render device for Windows7/8

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>
bugfix : add missing include.

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>
bugfix : add ctcodec to cmakelist environment.

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>
bugfix : update rendersystem cmake file for windows8

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>
bugfix: add missing header.

Signed-off-by: Kim Kulling <kim.kulling@googlemail.com>