fixed unresolved require in Rakefile
stupid gem -> eat
Aah Rakefile
added rspec to general scope of Gemfile
I am not sure why rake can't find rspec core..
defined default / route for app.rb to test landing page in heroku
fixed rakefile problems by isolating local env
added unicorn instead of thin as recommended by heroku
adapted unicorn instead of thin and also added redis-cloud addon to
heroku app