merge of 25 commits

static/attribution.css

static/bootstrap.bundle.min.js

static/dbtl.css

static/description.css

static/hamburger.css

static/home.css

static/human-practice.css

static/members.css

static/notebook.css

static/parallex.css

static/results.css

static/software.css

wiki/layout.html

wiki/pages/attributions.html

wiki/pages/description.html

wiki/pages/design.html

wiki/pages/engineering.html

wiki/pages/experiments.html

wiki/pages/future-direction.html

wiki/pages/home.html