Fix typos

    def images(self):

        '''

        Return a dict of informations on images

        Return a dict of information on images

        '''

        db_images = self.db.ask("SELECT md5, name, version, date,\

                author, description, size FROM image ORDER BY name, version").fetchall()

    def payloads(self):

        '''

        Return a dict of informations on payloads

        Return a dict of information on payloads

        '''

        db_payloads = self.db.ask("SELECT payload.md5,payload.size,payload.isdir,image.name,image.version,payload.name FROM payload inner join image on payload.image_md5 = image.md5").fetchall()

        res = {}