use Ruby 2.0.0

For all rbenv users, this will keep you safe. Don't panic if you are of
the rvm persuasion. It shouldn't interfere as rvm would completely
ignore it
added thin, rspec, capybara, others for dev, test

`Thin` has a good reputation as a webserver, and I've used it for all my
Rails projects. `rspec-rails` is for TDD and BDD (along with `capybara`).
`meta_request` is required for the Rails Chrome browser plugin.
use env vars in database config file

Since this project is open source, it's safer to hide our personal
credentials for things such as database access. One way is set them as
environmental variables and have Rails read them. The benefit is we all
don't have to have the same database name, login username, password.
Everybody could set it to what they so desire
use env vars in database config file

Since this project is open source, it's safer to hide our personal
credentials for things such as database access. One way is set them as
environmental variables and have Rails read them. The benefit is we all
don't have to have the same database name, login username, password.
Everybody could set it to what they so desire
run rspec generate as well as created binstubs

binstubs are useful so you can run `bin/rspec ...` instead of `bundle exec
rspec ...` all the times you want to test the application