Blender Git Loki

CMake: fix MSVC debug build crash at startup when ffmpeg enabled.

A wrong libraries link order was causing this problem for
some reason. Since a sorting algorithm for linked libraries
was already implemented in Unix, I just enabled it for Windows.

Note about CMake 2.6.0: The Link Library Dependencies option
(Linker General settings panel) is automatically enabled, which
causes the Blender libraries to be linked twice because CMake
will also add them in the Additional Dependencies field.
CMake 2.8.0 does not have this problem, please upgrade if you
are still using CMake 2.6.0.