Removed frontend folder

Removed the angular js code
Creation of notes with unique URLs

A user is now able to successfully create a note and provide a unique
url for their note.
Moved all the routes and added a 404 error page

Moved the routes to the routes.js file in the routes folder. Also added
a basic 404 error page to begin error handling.
Added 404 Error Handling

For all undefined routes a 404 error with a static page will be sent.
Fixed handlebars layout issues, added navigation & more.

Also added a /recent page, javascript form validation, favicon and a
custom 404 error handling page.
Added README file.
Moved README file
Added expire via mongodb
New error handling methods added.

Some of the error handling dealing with 404 errors was added as well as
errors regarding addresses that already exist.
Edit to home.handlebars
Moved all files and folders to main directory
Changes to README file
Merge branch 'App'