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/main.cpp

@@ -20,6 +20,7 @@ int main(int argc, char* argv[])
 
 	ExampleEntries examples;
 	examples.initExampleEntries();
+	examples.initOpenCLExampleEntries();
 
 	ExampleBrowserInterface* exampleBrowser = new DefaultBrowser(&examples);
 	bool init = exampleBrowser->init(argc,argv);