- Change BaseImporter::GetExtensionList to add all known file extensions to a std::set, so uniqueness is guaranteed. Also rewrite all related functions in Importer. NOTE: This does *not* change the public interface.

- FIX build error on vc8/release-noboost x64, ConvertUTF.c had wrong PCH settings.
- ADD knowext and listext verbs to assimp_cmd, add some raw docs.
- Update unit tests to reflect these changes. Currently I keep getting failures in some tests, this needs to be resolved *urgently*.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@567 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/B3DImporter.cpp

@@ -74,8 +74,8 @@ bool B3DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool
 }
 
 // ------------------------------------------------------------------------------------------------
-void B3DImporter::GetExtensionList( std::string& append ){
-	append.append("*.b3d");
+void B3DImporter::GetExtensionList( std::set<std::string>& extensions ){
+	extensions.insert("b3d");
 }
 
 #ifdef DEBUG_B3D