Update the pulse schedule notebook.

Author: taalexander

qiskit/advanced/ignis/1_calibrating_a_qubit.ipynb

@@ -31,7 +31,8 @@
     "from qiskit import IBMQ\n",
     "import qiskit.pulse as pulse\n",
     "import qiskit.pulse.pulse_lib as pulse_lib\n",
-    "from qiskit.compiler import assemble\n"
+    "from qiskit.compiler import assemble\n",
+    "from qiskit.qobj.utils import MeasLevel, MeasReturnType"
    ]
   },
   {
@@ -1091,7 +1092,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.8"
+   "version": "3.7.4"
   },
   "varInspector": {
    "cols": {