- 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

test/unit/utLimitBoneWeights.cpp

@@ -37,15 +37,15 @@ void LimitBoneWeightsTest :: setUp (void)
 // ------------------------------------------------------------------------------------------------
 void LimitBoneWeightsTest :: tearDown (void)
 {
-	delete this->pcMesh;
-	delete this->piProcess;
+	delete pcMesh;
+	delete piProcess;
 }
 
 // ------------------------------------------------------------------------------------------------
 void LimitBoneWeightsTest :: testProcess(void)
 {
 	// execute the step on the given data
-	this->piProcess->ProcessMesh(this->pcMesh);
+	piProcess->ProcessMesh(pcMesh);
 
 	// check whether everything is ok ...
 	typedef std::vector<LimitBoneWeightsProcess::Weight> VertexWeightList;