enable URDF loading throught the 'File/Open' menu

set a default camera targets for each demo. note that it is only reset when switching to a different demo, so you can restart at your chosen location.
no OpenCL pairbench drawing in OpenGL2 (there is no VBO available etc)

examples/ExampleBrowser/ExampleEntries.h

@@ -20,6 +20,8 @@ public:
 	static void registerExampleEntry(int menuLevel, const char* name,const char* description, CommonExampleInterface::CreateFunc* createFunc, int option=0);
 	
 	void initExampleEntries();
+
+	void initOpenCLExampleEntries();
 	
 	int getNumRegisteredExamples();