/: updated Express.js options with default view path, rendering engine and environment
/lib/ & /views/: added view paths and moved .ejs files to .html
/controllers/ & /views/misc/: updated example in routes and added robots.txt and humans.txt
/ & /lib/: fixed bug with process environment variable NODE_ENV not being obtained and added response logger
/ & /lib/: added Mongo store for sessions, added Helmet headers, cleaned and updated Express.js warnings and options