title: pip install package from requirements fails, "uses insecure transport scheme"
body: <p>I'm trying to install <a href="https://pypi.python.org/pypi/django-forms-builder/" rel="nofollow">django-forms-builder</a> via an entry in the requirements.txt file. When running </p>
  
  <p><code>pip install -r requirements.txt</code></p>
  
  <p>I receive the error </p>
  
  <pre><code>django-forms-builder/0.11.1 uses an insecure transport scheme (http). Consider using https if  has it available
  django-forms-builder/ uses an insecure transport scheme (http). Consider using https if  has it available
  Could not find any downloads that satisfy the requirement django-forms-builder==0.11.1 (from -r requirements.txt (line 33))
  </code></pre>
  
  <p>The message is very clear, it wants https, but I need to install the package anyway. It works when I install it separately outside of the requirements file with a simple</p>
  
  <pre><code>pip install django-forms-builder
  </code></pre>
  
  <p>so how can I force the requirements to accept it as well? </p>