Added a GetClassStatic function to all entities, as well as cFurnaceEntity, cChestEntity and cWorld

Using templates to generate ForEach* functions instead of MACROS
Better error reporting in ForEach* functions

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1191 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/Entity.cpp

@@ -70,7 +70,19 @@ cEntity::~cEntity()
 
 
 
-CLASS_DEF_GETCLASS(cEntity);
+const char * cEntity::GetClass(void) const
+{
+	return "cEntity";
+}
+
+
+
+
+
+const char * cEntity::GetClassStatic(void)
+{
+	return "cEntity";
+}