title: Installing statsmodesl 0.7
body: <p>I'd like to use statsmodels 0.7 and have tried <code>pip install statsmodels --upgrade</code>. However, only version 0.6.1 has been installed.</p>
  
  <p>I guess the problem occurs because 0.7 is not still stable version.</p>
  
  <p>Please let me know how to install statsmodels 0.7.</p>