Refactored js file from random collection of functions to more OO approach.
Updated file input to only accept images.
Update styling to narrower layout, based on boostrap 'Narrow jumbotron'
example.
Adding load image from URL - functional, but incomplete.
Moved images into sub folder.
Update to load image from URL
Replaced carousel with tabbed nav for cleaner UI.
Add 'Loading' gif as canvas background, when fetching an image from
a remote URL.
Code run through a tidier to neaten.
Added function stubs for imgur.com upload, and reddit submission.