Persist plot reservation regions

src/main/java/com/majinnaibu/bukkitplugins/metropolis/MetropolisPlugin.java

@@ -972,6 +972,7 @@ public class MetropolisPlugin extends JavaPlugin {
 		regionManager.addRegion(reservedRegion);
 		
 		_occupiedPlots.add(Plot.get(reservedRegion));
+		saveRegions();
 	}
 	
 	public Cuboid getCityCuboid(){

src/main/java/com/majinnaibu/bukkitplugins/metropolis/commands/MetropolisPlotReserveCommand.java

@@ -68,6 +68,7 @@ public class MetropolisPlotReserveCommand implements CommandExecutor {
 		String regionName = args[0];
 		
 		_plugin.reserveCuboid(regionName, cuboid);
+		sender.sendMessage("Reserved plot region " + regionName + ".");
 		
 		return true;
 	}