Basic Positron class method interface

[marnen]

As a user I can include Positron into a class So that I can use it to encapsulate ActiveRecord finders

Interface idea:

class Model # not ActiveRecord
  include Positron

  def self.find(id)
    db.find id # proxies to an ActiveRecord class, returns (for now) an instance of that class
  end
end

[marnen]

Blocked for #4, so we can get decent tests going.

[marnen]

We should make sure that the ActiveRecord class takes its table name from the model class. So

class User
  include Positron
end

User.send(:db).table_name.should == 'users'