easily_typable 1.0.0

Although polymorphism is a recommended standard in Object-Oriented programming for invoking varied behavior in an inheritance hierarchy, sometimes it is still useful to verify if a particular model belongs to a certain type when the behavior concerned does not belong to the model and is too small to require a Design Pattern like Strategy. To avoid the model.is_a?(CertainType) syntax, a more readable approach that developers resort to is to add an English-like method that hides the details of type checking model.certain_type?. Implementing such methods manually gets repetitive after a while, so an easier way to get these methods automatically is to mixin the EasilyTypable module.