Migrating NCBO data

Steps for migration:

1. Copy settings.sample.rb to settings.rb
2. Populate the settings file with the values appropriate to your environment
3. gem install bundler
4. bundle install
5. To run all of the migrations: bundle exec ruby all.rb
6. To run a particular migration: bundle exec ruby migration.rb (some migrations are dependent on others, you will get an error if you try to run a migration with a dependent migration that hasn't been run yet)