remove AssimpPCH.h: fixes #534

code/MaterialSystem.cpp

@@ -42,12 +42,17 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *  @brief Implementation of the material system of the library
  */
 
-#include "AssimpPCH.h"
+
 
 #include "Hash.h"
 #include "fast_atof.h"
 #include "ParsingUtils.h"
 #include "MaterialSystem.h"
+#include "../include/assimp/types.h"
+#include "../include/assimp/material.h"
+#include "../include/assimp/DefaultLogger.hpp"
+#include "Macros.h"
+
 
 using namespace Assimp;