Added mongoose and initiate connection
Added models for comment and image. Also changed home controller to retrieve results from DB
Updated image controler:index to retrieve image from DB
Implemented functionality to store image details in Mongo
Added functionlity to like and store the values in DB
Added functionality to the image controller to add/save a comment. Added MD5 to the dependencies as well.
Updated sidebar helpers, introuced async and tapped into DB for data
Added delete image functionality
Merge pull request #2 from redlumxn/persist-mongodb

Persist mongodb