Fix incorrect import in example notebook.

docs/examples/notebooks/display_protocol.ipynb

@@ -44,9 +44,9 b''
     }, 
     {
      "cell_type": "code", 
-     "collapsed": true, 
+     "collapsed": false, 
      "input": [
-      "from IPython.lib.pylabtools import print_figure", 
+      "from IPython.core.pylabtools import print_figure", 
       "from IPython.core.display import Image, SVG, Math", 
       "", 
       "class Gaussian(object):", 
@@ -272,7 +272,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 11
+     "prompt_number": 9
     }, 
     {
      "cell_type": "markdown", 
@@ -288,7 +288,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 12
+     "prompt_number": 10
     }, 
     {
      "cell_type": "markdown", 
@@ -307,7 +307,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 13
+     "prompt_number": 11
     }, 
     {
      "cell_type": "markdown", 
@@ -329,7 +329,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 14
+     "prompt_number": 12
     }, 
     {
      "cell_type": "markdown", 
@@ -351,7 +351,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 15
+     "prompt_number": 13
     }, 
     {
      "cell_type": "code", 
@@ -362,7 +362,7 b''
      ], 
      "language": "python", 
      "outputs": [], 
-     "prompt_number": 16
+     "prompt_number": 14
     }, 
     {
      "cell_type": "code",