Merge pull request #1 from robotmayo/master

:D
added comment model/schema
using comment model
fixed comment template formating
comments are now threads
posting comments on threads
refactoring
more refactoring
tweaks
improved findByUsername middleware
Improved findThread middleware
refactored app.param
changed comment creation route
can 'like' threads
refactored thread 'like'
saving comment on authors document
updated temp GUI
formating.
storing 'who' liked comments/threads
can only like threads once + error handling