Hacker news  w/out rspec.

Heorku:
http://rocky-ocean-9021.herokuapp.com/

Completed the core spec. Couldn't do the rspec testing.

The hw helped me understand the how the path function in the rails. 
Took me a while to get a hang of passing a params to controller with assigned path.

Other than that I basically followed the structure of like modules from polymorphic demo. 
Figuring out how to count the score took me a while. I created a new method inside the article and comment controller which the code is redundunt.