Use new include bracktes.

code/TerragenLoader.cpp

@@ -44,12 +44,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 #ifndef ASSIMP_BUILD_NO_TERRAGEN_IMPORTER
+
 #include "TerragenLoader.h"
-#include "../include/assimp/Importer.hpp"
-#include "../include/assimp/IOSystem.hpp"
 #include "StreamReader.h"
-#include "../include/assimp/scene.h"
-#include "../include/assimp/DefaultLogger.hpp"
+#include <assimp/Importer.hpp>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
 
 
 using namespace Assimp;