add get/setSystemTimeOffset methods that are backwards compatible

src/main/java/org/cobbzilla/util/daemon/ZillaRuntime.java

@@ -286,7 +286,9 @@ public class ZillaRuntime {
 
     public static String uuid() { return UUID.randomUUID().toString(); }
 
-    @Getter @Setter private static AtomicLong systemTimeOffset = new AtomicLong(0L);
+    private static AtomicLong systemTimeOffset = new AtomicLong(0L);
+    public static long getSystemTimeOffset () { return systemTimeOffset.get(); }
+    public static void setSystemTimeOffset (long t) { systemTimeOffset.set(t); }
     public static long incrementSystemTimeOffset(long t) { return systemTimeOffset.addAndGet(t); }
     public static long now() { return System.currentTimeMillis() + systemTimeOffset.get(); }
     public static String hexnow() { return toHexString(now()); }

src/main/java/org/cobbzilla/util/time/CurrentTime.java

@@ -7,6 +7,8 @@ import org.cobbzilla.util.daemon.ZillaRuntime;
 import org.joda.time.DateTime;
 import org.joda.time.DateTimeZone;
 
+import static org.cobbzilla.util.daemon.ZillaRuntime.getSystemTimeOffset;
+
 @NoArgsConstructor
 public class CurrentTime {
 
@@ -17,7 +19,7 @@ public class CurrentTime {
     public CurrentTime(DateTimeZone tz) {
         zone = tz.getID();
         now = new CurrentTimeValues(tz, ZillaRuntime.now());
-        realNow = ZillaRuntime.getSystemTimeOffset().get() == 0 ? null : new CurrentTimeValues(tz, ZillaRuntime.realNow());
+        realNow = getSystemTimeOffset() == 0 ? null : new CurrentTimeValues(tz, ZillaRuntime.realNow());
     }
 
     @NoArgsConstructor