Changed Tradeable update service frequency.

src/main/java/nl/andrewl/coyotecredit/service/TradeableUpdateService.java

@@ -46,7 +46,7 @@ public class TradeableUpdateService {
 		updatePublicTradeables();
 	}
 
-	@Scheduled(cron = "@midnight")
+	@Scheduled(cron = "0 0 0,6,12,18 * * *")
 	public void scheduledUpdate() {
 		updatePublicTradeables();
 	}

src/main/java/nl/andrewl/coyotecredit/service/UserService.java

@@ -136,6 +136,7 @@ public class UserService {
 	}
 
 	@Scheduled(cron = "@midnight")
+	@Transactional
 	public void removeExpiredActivationTokens() {
 		activationTokenRepository.deleteAllByExpiresAtBefore(LocalDateTime.now(ZoneOffset.UTC));
 	}