Cleanup quotes :)

Prefer double quotes.
Add Flask-FlatPages support

Flask-FlatPages provides a collections of pages to your Flask
application. Pages are built from “flat” text files as opposed to a
relational database.
Add Frozen-Flask support

Frozen-Flask freezes a Flask application into a set of static files.
The result can be hosted without any server-side software other than a
traditional web server.
Remove Bootstrap

We'll be using Bourbon, Bitters, and Neat.
Add Bourbon, Bitters, and Neat assets.

Bourbon: A simple and lightweight mixin library for Sass.
Bitters: Scaffold styles, variables and structure for Bourbon projects.
Neat: A lightweight semantic grid framework for Sass and Bourbon.
Add jQuery lib

Via `bower install`.
Remove SQLAlchemy, Flask-SQLAlchemy and Flask-Migrate support

App will function as a static site generator.
Change FLATPAGES_ROOT to "articles"
Create a freezer instance when required
Setup assets and templates, scaffolding