- CMake overhaul. Add proper FindXXX scripts for PkgMacros, ZLIB, DirectX. Isolate MSVC-specific defines. Add newer boost versions to boost whitelist. Many thanks to Mr. S. for the patch! (see http://zfx.info/viewtopic.php?f=9&t=334&p=32190#p32190)

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1293 67173fc5-114c-0410-ac8e-9d2fd5bffc1f