Added 'nodeIsBusy()' getter method.

                print(e)

        return result

    def nodeIsBusy(self, vospacePath):

        """Returns 'True' if the VOSpace node is busy, 'False' otherwise."""

        with self.getConnection() as conn:

            try:

                cursor = conn.cursor(cursor_factory = RealDictCursor)

                cursor.execute("""

                    SELECT job_id

                    FROM node

                    WHERE node_id = id_from_vos_path(%s);

                    """,

                    (vospacePath,))

                result = cursor.fetchall()

            except Exception as e:

                if not conn.closed:

                    conn.rollback()

                print(e)

        if result[0]["job_id"]:

            return True

        else:

            return False

    ##### Job #####

    def jobExists(self, jobId):