Preprocessing.

        Removes repeated chars from firstName and lastName fields.

        Adds a 'name' field joining all names in to one string.

def preprocess(self):
        """Preprocessing.

        Removes repeated chars from firstName and lastName fields.

        Adds a 'name' field joining all names in to one string.
        """
        super(MambuUser,self).preprocess()

        try:
            self['firstName'] = self['firstName'].strip()
        except Exception as e:
            self['firstName'] = ""
        try:
            self['lastName'] = self['lastName'].strip()
        except Exception as ex:
            self['lastName'] = ""

        self['name'] = self['firstName'] + " " + self['lastName']