For methods which take in an ID (type Long) as a parameter, a check is now performed to see if they are null or not. if they are null then an exception is thrown
new methods calculateTotalNumberOfUsers getSessionIdsFromContent getNumberOfUsersInSession Which is used to generate the statistics in the monitoring environment
all utility functions are now in the one class NbWebUtil instead of having a separate util class for each environmnent (authoring monitoring and learner)