Fix bug with token expiration. Increase the default length of the pepper. Update hashes on startup with RotationPerRequest strategy. Don't check for existing pepper on the none hash algorithm.

src/main/java/io/kamax/mxisd/config/HashingConfig.java

@@ -11,7 +11,7 @@ public class HashingConfig {
     private static final Logger LOGGER = LoggerFactory.getLogger(HashingConfig.class);
 
     private boolean enabled = false;
-    private int pepperLength = 10;
+    private int pepperLength = 20;
     private RotationPolicyEnum rotationPolicy;
     private HashStorageEnum hashStorageType;
     private long delay = 10;