- move importer and postprocessing step construction chain to separate files to make them available to the exporter part.

+ introduce aiScene::mPrivate. This is a potentially breaking API change. The new member is added at the end of the structure though, so serious regressions are not to be expected.
+ add a mPreprocessing parameter to all Export API calls. Allow exporters to specify further PP steps to be executed prior to handing control to them. The entire export API now operates on a copy of the scene that the user passed in.
- mass refactoring: all constructors of BaseProcess/BaseImporter inherited classes are public now and Importer will perhaps feel a bit sad after having loft all of its friends.
# fix const correctness in SceneCombiner


git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1060 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/MDCLoader.h

@@ -58,15 +58,11 @@ using namespace MDC;
 */
 class MDCImporter : public BaseImporter
 {
-	friend class Importer;
-
-protected:
-	/** Constructor to be privately used by Importer */
+public:
 	MDCImporter();
-
-	/** Destructor, private as well */
 	~MDCImporter();
 
+
 public:
 
 	// -------------------------------------------------------------------