fix notebook

Author: Carreau

docs/bqplot.ipynb

@@ -17,7 +17,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from bqplot import *\n",
+    "from bqplot import Figure, Axis, Lines, LinearScale, Bars\n",
     "\n",
     "import numpy as np\n",
     "\n",
@@ -114,8 +114,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from bqplot import *\n",
-    "\n",
     "import numpy as np\n",
     "\n",
     "np.random.seed(0)\n",