[TESTS] Adding slugify.

test_parser.ipynb

 {
  "metadata": {
   "name": "",
-  "signature": "sha256:6df2ce47b09a6203b244f7b4dc27f3346901261b85922dd46bc54d669d6469a6"
+  "signature": "sha256:471ecc2290c2a84d75008cf33cc7db2b8c74f4bea96be0f180e58bedfabceaa8"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -833,6 +833,37 @@
      ],
      "prompt_number": 26
     },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from autoslug import AutoSlugField"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 33
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "AutoSlugField()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "metadata": {},
+       "output_type": "pyout",
+       "prompt_number": 34,
+       "text": [
+        "<autoslug.fields.AutoSlugField>"
+       ]
+      }
+     ],
+     "prompt_number": 34
+    },
     {
      "cell_type": "code",
      "collapsed": false,