Initial commit.
Use a specific version of ruby.
Generated a rails app.

Used v3.0.0_RC2 of Rails to generate it.
Successfull initial `bundle install`.
We now have a placeholder home page.

Caching the gems.
Let's use mysql for now.
Don't store the database.yml in git.
Use the mysql2 gem.
We now have the absolute basics of a User model.
Can now login, logout, and signup.
We now have a hook to buy a tshirt.
Started on a payment form.
A start on making the purchase API call.
Updated gems.
Now passing currency code and a better amount.
Updated the transaction type to be in sync with core.
Now showing card field values when processing fails.
Showing some validation errors.
Use the default rails scaffold stylesheet for now.
Cleaned up the view a bit.