Merge branch 'cleanup'

Author: sonichi

autogen/version.py

@@ -1 +1 @@
-__version__ = "0.1.1"
+__version__ = "0.1.2"

notebook/agentchat_teaching.ipynb

@@ -8,15 +8,6 @@
     "<a href=\"https://colab.research.google.com/github/microsoft/autogen/blob/main/notebook/agentchat_teaching.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# %pip install --quiet flaml\"[autogen]\"~=2.1.0"
-   ]
-  },
   {
    "attachments": {},
    "cell_type": "markdown",