Removed the views/temp folder.
Added async library to dependencies list and installed it
Changed the name attribute on all category checkboxes to - post[categories]
Added the models layer, to with scripts to interact with the db. So far, implemented db.js: intializes a connection to mongodb & also defines the data schemas, and posts.js: handles all interactions with the posts in the db
Included require call to db.js to establish database connection
Temporarily caused the route for: / to dump all posts in the db as json, as opposed to rendering the html view. Will revert this later
Implemented POST:/posts/new, to save any images submitted with the post & the post itself. Redirects to / after
Merge branch 'develop': Implemented POST to /posts/new &  MongoDB for Persistence