title: Weird symbols in IPython Notebook
body: <p>I use cyrillic symbols in my IPython notebooks. It works fine when I work in ML studio.</p>
  
  <p>But when I download notebooks and open them (for example on <a href="http://try.jupyter.org" rel="nofollow">http://try.jupyter.org</a> ), I see strange characters.</p>
  
  <p>Bad notebook (created on Azure ML Studio):</p>
  
  <pre><code>{"nbformat_minor": 0, "cells": [{"source": "\u00d1\u0082\u00d0\u00b5\u00d1\u0081\u00d1\u0082", "cell_type": "markdown", "metadata": {"collapsed": true}}], "nbformat": 4, "metadata": {"kernelspec": {"display_name": "Python 2", "name": "python2", "language": "python"}, "language_info": {"mimetype": "text/x-python", "nbconvert_exporter": "python", "version": "2.7.11", "name": "python", "file_extension": ".py", "pygments_lexer": "ipython2", "codemirror_mode": {"version": 2, "name": "ipython"}}}}
  
  $ file bad.ipynb 
  bad.ipynb: ASCII text, with very long lines, with no line terminators
  </code></pre>
  
  <p>"Good" version, created on <a href="http://try.jupyter.org" rel="nofollow">http://try.jupyter.org</a>:</p>
  
  <pre><code>{
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "тест"
     ]
    }
   ],
   "metadata": {
    "kernelspec": {
     "display_name": "Python 2",
     "language": "python",
     "name": "python2"
    },
    "language_info": {
     "codemirror_mode": {
      "name": "ipython",
      "version": 2
     },
     "file_extension": ".py",
     "mimetype": "text/x-python",
     "name": "python",
     "nbconvert_exporter": "python",
     "pygments_lexer": "ipython2",
     "version": "2.7.10"
    }
   },
   "nbformat": 4,
   "nbformat_minor": 0
  }
  
  $ file good.ipynb 
  good.ipynb: UTF-8 Unicode text
  </code></pre>