Description:

Installs Transcript. Creates a new audit model with the passed model name.
Creates a configuration file. Injects the Transcript concerns into
ApplicationController and the newly created model.

Example:

rails generate transcript audit_entry

This will create:

    Configuration: config/initializers/transcript.rb
    Model:         app/models/audit_entry.rb

This will modify:

    Controller:    app/controllers/application_controller.rb
    Model:         app/models/audit_entry.rb