First Rails deployment: Rails tutorial demo app

I have successfully deployed the Rails tutorial demo app (http://ruby.railstutorial.org/chapters/a-demo-app#top) on Heroku, and I'm trying to do the same here on WebFaction. My source code for this app is at https://github.com/jhsu802701/ror-demo .

I followed the the WebFaction documentation on deploying a Rails app. However, my Demo app behaves differently on WebFaction than it does on Heroku and locally. I know that I have WebFaction set up to forward people to the correct app. You can see that when I make a modification to the public/index.html page, the result shows up as expected at http://doppler.webfactional.com/ .

But when I change the name of public/index.html file to index2.html, I'm still getting an error message instead of the list of users at http://doppler.webfactional.com/users . What is the critical step that I need to take on WebFaction that wasn't necessary locally or in Heroku?

UPDATE 1: I used Capistrano to try to deploy the demo Rails app, but I'm still back where I started. I used the procedure at http://docs.webfaction.com/software/rails.html , and I entered the "bundle install" and "rake db:migrate" commands from inside my app on WebFaction. Everything seems to work (no error messages) until I use my browser to open the URL http://testrails.doppler.webfactional.com/users . Instead of being given an option to create users, I get the "We're sorry, but something went wrong." error message.

The contents of the production.log file are as follows:

Connecting to database specified by database.yml
Started GET "/users" for 74.5.73.237 at 2013-03-23 03:51:14 +0000
Processing by UsersController#index as HTML
Completed 500 Internal Server Error in 23ms

ActiveRecord::StatementInvalid (Could not find table 'users'):
  app/controllers/users_controller.rb:5:in `index'