add missing gem version constraints
add rspec-rails gem and generate install
add .ruby-version
add guard-rspec gem and Guardfile
add factory_girl_rails gem
add factory_girl_rails gem and spec/factories.rb
add capybara gem
add inherited_resources gem
add flash and errors partials
add scaffold for Word model
add spec for Word
add specs and views for creating a word
add factory for Word
add spec for viewing a word