Relax requirement of launch_record_id in broaddast request.

There is no meaningful processing of launch_record_id, which
is really just a pass through back to portal.

src/main/java/altk/comm/engine/Broadcast.java

@@ -721,12 +721,6 @@ public abstract class Broadcast
 
     protected void setLaunchRecordId(String launchRecordId)
     {
-        if (launchRecordId == null)
-            throw new IllegalArgumentException(
-                    "Argument launchRecordId in Broadcast.setLaunchRecordId method cannot be null");
-        if (this.launchRecordId != null)
-            throw new IllegalStateException(
-                    "Broadcast.setLaunchRecordId method cannot be invoked more than once for a Broadcast");
         this.launchRecordId = launchRecordId;
     }
 

src/main/java/altk/comm/engine/JobReport.java

@@ -23,10 +23,6 @@ public class JobReport
         {
             throw new IllegalArgumentException("JobReport given null or empty broadcastId");
         }
-        if (launchRecordId == null || launchRecordId.length() == 0)
-        {
-            throw new IllegalArgumentException("JobReport given null or empty launchRecordId");
-        }
 
         this.broadcastId = broadcastId;
         this.launchRecordId = launchRecordId;
@@ -57,7 +53,7 @@ public class JobReport
     public final StringBuffer appendXML(StringBuffer xml)
     {
         xml.append("<" + xmlRootNodeName + " broadcast_id=\"" + broadcastId 
-                + "\" launch_record_id=\"" + launchRecordId
+                + (launchRecordId != null? ("\" launch_record_id=\"" + launchRecordId) : "")
                 + "\" " + activityRecordIdParamName + "=\"" + recordId
                 + "\" contact_id=\"" + contactId
                 + "\" recipient_status=\"" + jobStatus + "\" >");