title: How to set x axis title and title on seaborn distplot
body: <p>I have a pandas dataframe that looks like this</p>
  <pre><code>import pandas as pd
  dt = pd.DataFrame({'var':[1,1,1,2,2,3,3,3,3,3]})
  </code></pre>
  <p>And I am creating a dist plot like this:</p>
  <pre><code>import seaborn as sns
  fig = sns.distplot(dt['var'], norm_hist=False, kde=False, bins=3).get_figure()
  </code></pre>
  <p>And then I am saving this plot to a pdf</p>
  <pre><code>from matplotlib.backends.backend_pdf import PdfPages
  pdf = PdfPages('foo.pdf')
  pdf.savefig(fig, height=10, width=18, dpi=500, bbox_inches='tight', pad_inches=0.5)
  plt.close()
  </code></pre>
  <p>How can I change the title and x_axis title at the plot ?</p>