The SWIG_FEATURES environment variable is to get pip install working with M2Crypto==0.22.3. It works without SWIG_FEATURES if we update to M2Crypto >= 0.23.0.
Also did some organization, add README.
By default, bootstrap pads the “navbar-brand” element with 15px, and sets margin-left to -15px. Since we had removed all the padding, it meant that the logo was -15px to the left of the main page margin.