Add deletion of station schedule info when station is removed

Task scheduler entry for Windows, cron entry for *nix

src/main/java/name/nathanmcrae/numbersstation/StationSelectionController.java

@@ -143,6 +143,7 @@ public class StationSelectionController {
             if (change.wasRemoved()) {
                 for (StationSettings removedStation : change.getRemoved()) {
                     try {
+                        StationSettings.deleteStationData(removedStation.getName());
                         removedStation.deleteDir();
                     } catch (IOException e) {
                         logger.log(Level.SEVERE, "Exception when removing station directory", e);