This changes the behavior of Camera::resetRenderers(). It will no longer activate all layers for every renderer. This is now up to the clients to do. It also adds some code to the map loader that will automatically activate the layers in the InstanceRenderer. Clients that use the any of the renderers will now have to activate the layer they want to use. Also updated rio_de_hola and the editor to reflect changes. fixes[t:457]

--- a/engine/core/view/camera.cpp	Tue Feb 23 19:44:36 2010 +0000
+++ b/engine/core/view/camera.cpp	Wed Feb 24 20:03:52 2010 +0000
@@ -468,7 +468,6 @@
 		for (; r_it != m_renderers.end(); ++r_it) {
 			Map* map = m_location.getMap();
 			r_it->second->reset();
-			r_it->second->activateAllLayers(map);
 		}
 	}