Several little tweaks and fixes

- Fix some uninitialized fields getting populated with random data
- Fix identity of last edited town and outdoor section not being saved
- Fix editor sometimes saving to application directory instead of overwriting the loaded scenario
- Fix town specials being saved to outdoors list and vice versa
- Fix right-most column of map not being loaded properly
- Fix town entry node for start town being called after the first turn of the scenario
- Add option to call a special node at startup (right after the intro dialog)

src/tools/fileio_scen.cpp

@@ -696,6 +696,8 @@ static void readScenarioFromXml(ticpp::Document&& data, cScenario& scenario) {
 					int h;
 					game->GetText(&h);
 					scenario.outdoors.resize(scenario.outdoors.width(), h);
+				} else if(type == "on-init") {
+					game->GetText(&scenario.init_spec);
 				} else if(type == "start-town") {
 					game->GetText(&scenario.which_town_start);
 					// TODO: Make sure town is valid