Install guard-livereload to reload the browser as changes are made
Swap static Bootstrap for dynamic LESS-compiled
Convert to bootstrap-sass
Enable Mongoid identity map for eager loading

This allows for more efficient queries.
http://mongoid.org/en/mongoid/docs/identity_map.html
Add selenium-webdriver for development of specs only

This can make it easier to find problems with integration specs than
running them in poltergeist.
Configure alternative Capybara drivers for when needed

poltergeist_debug allows opening an inspector, selenium allows running the
spec on Chrome itself.