Participants can now join during the warning period as well.

Added RaceDataSourceToXML.
RaceServer now create an XMLMessage when the race's RaceDataSource changes.
#story[1188]

racevisionGame/src/main/java/mock/model/RaceLogic.java

@@ -71,7 +71,8 @@ public class RaceLogic implements RunnableWithFramePeriod, Observer {
         long previousFrameTime = System.currentTimeMillis();
 
         while (((race.getRaceStatusEnum() == RaceStatusEnum.PRESTART)
-                || (race.getRaceStatusEnum() == RaceStatusEnum.NOT_ACTIVE)) && loopBool) {
+                || (race.getRaceStatusEnum() == RaceStatusEnum.NOT_ACTIVE)
+                || (race.getRaceStatusEnum() == RaceStatusEnum.WARNING)) && loopBool) {
 
             long currentTime = System.currentTimeMillis();
 
@@ -87,6 +88,7 @@ public class RaceLogic implements RunnableWithFramePeriod, Observer {
             //Parse the race snapshot.
             server.parseSnapshot();
 
+
             waitForFramePeriod(previousFrameTime, currentTime, 50);
             previousFrameTime = currentTime;
         }