Use new heroku db url

Run `heroku addons:add heroku-postgresql:dev` to add the postgres database (its free!).

Then you have to run `heroku run console`

Once the console connects run: 
```ruby
require './environment'
DataMapper.auto_migrate!
```
That will create the tables in postgres. I will see if I can get the import rake task working tomorrow to read data from the csv file and put it in the database.