GBH/letmein — pull request #10 by kendagriff (2012-03-23 23:23:24+00:00)
Title: Protects Against Wild-Goose Chases

Recently I added a an inherited model (`class Teacher < User`), and because LetMeIn couldn't find `Teacher` in its list of models, Ruby threw an "implicit conversion" error deep down low in the stack.

It took me quite a while to even discover that the error was related to LetMeIn. This update throws an error upon model creation if the model is not found in the initializer list.

(Test included.)