Update the current user.
            
            @param user_id (int) - id of the user to be updated
            @param parameters (dictionary) - user object to update the user with
            
            @return (bool) - Boolean indicating whether UserUpdate was successful.

def UsersUpdate (self, user_id, parameters):
        """
            Update the current user.
            
            @param user_id (int) - id of the user to be updated
            @param parameters (dictionary) - user object to update the user with
            
            @return (bool) - Boolean indicating whether UserUpdate was successful.
        """
        if self.__SenseApiCall__('/users/{0}.json'.format(user_id), 'PUT', parameters):
            return True
        else:
            self.__error__ = "api call unsuccessful"
            return False